diff --git a/NEWS.md b/NEWS.md
index 1a3fa05..697c9e6 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,7 @@
 # sgplot (development version)
 
+* Add Social Security Scotland colours (`sss_colour_values`) and palettes (`sss_colour_palettes`)
+
 # sgplot 0.2.2
 
 * Fix links to contributing guidance in vignettes
diff --git a/R/data.R b/R/data.R
index 9046908..516f5c7 100644
--- a/R/data.R
+++ b/R/data.R
@@ -1,48 +1,48 @@
-# nolint start
+# nolint: start
 #' @title Scottish Government colour names and hex codes
 #'
-#' @description A vector containing colour names and their corresponding
-#' hex code.
+#' @description
+#' * \code{sg_colour_values} is a vector containing colour names and their corresponding
+#' hex codes.
+#' * \code{sg_colour_palettes} is a list grouping colours into palettes.
 #'
-#' @format A character vector
 #' @source \href{https://designsystem.gov.scot/guidance/charts/data-visualisation-colour-palettes}{Scottish Government Design System}
-# nolint end
+#' @md
+# nolint: end
 
 "sg_colour_values"
 
+#' @rdname sg_colour_values
+"sg_colour_palettes"
 
-# nolint start
-#' @title Scottish Government colour palettes
-#'
-#' @description A list grouping colours into palettes.
+
+#' @title Social Security Scotland colour names and hex codes
 #'
-#' @format A character list
-#' @source \href{https://designsystem.gov.scot/guidance/charts/data-visualisation-colour-palettes}{Scottish Government Design System}
-# nolint end
+#' @description
+#' * \code{sss_colour_values} is a vector containing colour names and their corresponding
+#' hex codes.
+#' * \code{sss_colour_palettes} is a list grouping colours into palettes.
+#' @md
 
-"sg_colour_palettes"
+"sss_colour_values"
+
+#' @rdname sss_colour_values
+"sss_colour_palettes"
 
 
 # nolint start
 #' @title Analysis Function colour names and hex codes
 #'
-#' @description A vector containing colour names and their corresponding
-#' hex code.
+#' @description
+#' * \code{af_colour_values} is a vector containing colour names and their corresponding
+#' hex codes.
+#' * \code{af_colour_palettes} is a list grouping colours into palettes.
 #'
-#' @format A character vector
 #' @source \href{https://analysisfunction.civilservice.gov.uk/policy-store/data-visualisation-colours-in-charts/}{Government Analysis Function Colours Guidance}
+#' @md
 # nolint end
 
 "af_colour_values"
 
-
-# nolint start
-#' @title Analysis Function colour palettes
-#'
-#' @description A list grouping colours into palettes.
-#'
-#' @format A character list
-#' @source \href{https://analysisfunction.civilservice.gov.uk/policy-store/data-visualisation-colours-in-charts/}{Government Analysis Function Colours Guidance}
-# nolint end
-
+#' @rdname af_colour_values
 "af_colour_palettes"
diff --git a/R/scale_colour_continuous_sg.R b/R/scale_colour_continuous_sg.R
index c258a68..6f1f4cf 100644
--- a/R/scale_colour_continuous_sg.R
+++ b/R/scale_colour_continuous_sg.R
@@ -2,8 +2,9 @@
 #'
 #' @param palette Name of palette to use; e.g. "main", "sequential", "focus".
 #' Default value is "sequential".
-#' @param palette_type Either "sg" to use Scottish Government palettes, or "af"
-#' to use Analysis Function palettes. Defaults to "sg".
+#' @param palette_type Either `sg` to use Scottish Government palettes, `sss`
+#' to use Social Security Scotland palettes or `af` to use Analysis Function
+#' palettes. Defaults to `sg`.
 #' @param reverse Boolean value to indicate whether the palette should be
 #' reversed.
 #' @param na_colour Colour to set for missing values.
@@ -20,7 +21,7 @@
 #' @export
 
 scale_colour_continuous_sg <- function(palette = "sequential",
-                                       palette_type = c("sg", "af"),
+                                       palette_type = c("sg", "sss", "af"),
                                        reverse = FALSE,
                                        na_colour = "grey50",
                                        guide = "colourbar",
@@ -30,8 +31,9 @@ scale_colour_continuous_sg <- function(palette = "sequential",
 
   palette_list <- switch(
     palette_type,
-    af = sgplot::af_colour_palettes,
-    sg = sgplot::sg_colour_palettes
+    af  = sgplot::af_colour_palettes,
+    sg  = sgplot::sg_colour_palettes,
+    sss = sgplot::sss_colour_palettes
   )
 
   # Error if palette doesn't exist
diff --git a/R/scale_colour_discrete_sg.R b/R/scale_colour_discrete_sg.R
index 1e04f4f..15ed019 100644
--- a/R/scale_colour_discrete_sg.R
+++ b/R/scale_colour_discrete_sg.R
@@ -2,8 +2,9 @@
 #'
 #' @param palette Name of palette to use; e.g. "main", "sequential", "focus."
 #' Default value is "main".
-#' @param palette_type Either "sg" to use Scottish Government palettes, or "af"
-#' to use Analysis Function palettes. Defaults to "sg".
+#' @param palette_type Either `sg` to use Scottish Government palettes, `sss`
+#' to use Social Security Scotland palettes or `af` to use Analysis Function
+#' palettes. Defaults to `sg`.
 #' @param reverse Boolean value to indicate whether the palette should be
 #' reversed.
 #' @param ... Additional arguments passed to scale type.
@@ -21,7 +22,7 @@
 #' @export
 
 scale_colour_discrete_sg <- function(palette = "main",
-                                     palette_type = c("sg", "af"),
+                                     palette_type = c("sg", "sss", "af"),
                                      reverse = FALSE,
                                      ...) {
 
diff --git a/R/scale_fill_continuous_sg.R b/R/scale_fill_continuous_sg.R
index ef16e74..3a4ee59 100644
--- a/R/scale_fill_continuous_sg.R
+++ b/R/scale_fill_continuous_sg.R
@@ -2,8 +2,9 @@
 #'
 #' @param palette Name of palette to use; e.g. "main", "sequential", "focus."
 #' Default value is "sequential".
-#' @param palette_type Either "sg" to use Scottish Government palettes, or "af"
-#' to use Analysis Function palettes. Defaults to "sg".
+#' @param palette_type Either `sg` to use Scottish Government palettes, `sss`
+#' to use Social Security Scotland palettes or `af` to use Analysis Function
+#' palettes. Defaults to `sg`.
 #' @param reverse Boolean value to indicate whether the palette should be
 #' reversed.
 #' @param na_colour Colour to set for missing values.
@@ -20,7 +21,7 @@
 #' @export
 
 scale_fill_continuous_sg <- function(palette = "sequential",
-                                     palette_type = c("sg", "af"),
+                                     palette_type = c("sg", "sss", "af"),
                                      reverse = FALSE,
                                      na_colour = "grey50",
                                      guide = "colourbar",
@@ -30,8 +31,9 @@ scale_fill_continuous_sg <- function(palette = "sequential",
 
   palette_list <- switch(
     palette_type,
-    af = sgplot::af_colour_palettes,
-    sg = sgplot::sg_colour_palettes
+    af  = sgplot::af_colour_palettes,
+    sg  = sgplot::sg_colour_palettes,
+    sss = sgplot::sss_colour_palettes
   )
 
   # Error if palette doesn't exist
diff --git a/R/scale_fill_discrete_sg.R b/R/scale_fill_discrete_sg.R
index 4cd7d37..8816d57 100644
--- a/R/scale_fill_discrete_sg.R
+++ b/R/scale_fill_discrete_sg.R
@@ -1,9 +1,10 @@
 #' @title Discrete colour fill scales for Scottish Government plots
 #'
 #' @param palette Name of palette to use; e.g. "main", "sequential", "focus."
-#' Default value is "main."
-#' @param palette_type Either "sg" to use Scottish Government palettes, or "af"
-#' to use Analysis Function palettes. Defaults to "sg".
+#' Default value is "main".
+#' @param palette_type Either `sg` to use Scottish Government palettes, `sss`
+#' to use Social Security Scotland palettes or `af` to use Analysis Function
+#' palettes. Defaults to `sg`.
 #' @param reverse Boolean value to indicate whether the palette should be
 #' reversed.
 #' @param ... Additional arguments passed to scale type.
@@ -20,7 +21,7 @@
 #' @export
 
 scale_fill_discrete_sg <- function(palette = "main",
-                                   palette_type = c("sg", "af"),
+                                   palette_type = c("sg", "sss", "af"),
                                    reverse = FALSE,
                                    ...) {
 
diff --git a/R/sg_palette.R b/R/sg_palette.R
index fdda546..c4f8e55 100644
--- a/R/sg_palette.R
+++ b/R/sg_palette.R
@@ -1,26 +1,28 @@
 #' Return function to use Scottish Government colour palette
 #'
-#' @param palette Name of palette from `sg_colour_palettes`
+#' @param palette Name of palette to use.
 #' @param reverse Boolean value to indicate whether the palette should be
-#' reversed
+#' reversed.
 #' @param colour_names Boolean value to indicate whether colour names should be
-#' included
-#' @param palette_type Either `sg` to use Scottish Government palettes, or `af`
-#' to use Analysis Function palettes. Defaults to `sg`.
+#' included.
+#' @param palette_type Either `sg` to use Scottish Government palettes, `sss`
+#' to use Social Security Scotland palettes or `af` to use Analysis Function
+#' palettes. Defaults to `sg`.
 #'
 #' @noRd
 
 sg_palette <- function(palette = "main",
                        reverse = FALSE,
                        colour_names = FALSE,
-                       palette_type = c("sg", "af")) {
+                       palette_type = c("sg", "sss", "af")) {
 
   palette_type <- match.arg(palette_type)
 
   palette_list <- switch(
     palette_type,
-    af = sgplot::af_colour_palettes,
-    sg = sgplot::sg_colour_palettes
+    af  = sgplot::af_colour_palettes,
+    sss = sgplot::sss_colour_palettes,
+    sg  = sgplot::sg_colour_palettes
   )
 
   # Check valid palette name
diff --git a/_pkgdown.yml b/_pkgdown.yml
index 61c7fb8..af95f77 100644
--- a/_pkgdown.yml
+++ b/_pkgdown.yml
@@ -61,13 +61,14 @@ reference:
   contents:
   - theme_sg
 
-- title: Colours
+- title: Colour scales
   contents:
   - starts_with("scale")
 
 - title: Colour values
   contents:
   - starts_with("sg_colour")
+  - starts_with("sss_colour")
   - starts_with("af_colour")
 
 - title: Helpers
diff --git a/data-raw/sss_colours.R b/data-raw/sss_colours.R
new file mode 100644
index 0000000..b6e87f7
--- /dev/null
+++ b/data-raw/sss_colours.R
@@ -0,0 +1,32 @@
+# Social Security Scotland (SSS) colours and palettes ----
+
+sss_colour_values <- c(
+  `navy` = "#201751",
+  `pink` = "#ff2891",
+  `purple` = "#461643",
+  `orange` = "#e5682a",
+  `dark-green` = "#0b4c0b",
+  `green` = "#5d9f3c",
+  `brown` = "#592c20",
+  `light-pink` = "#ca72a2",
+  `dark-blue` = "#002d54",
+  `mid-blue` = "#0065bd",
+  `light-blue` = "#55a8f2",
+  `grey` = "#949494"
+)
+
+sss_colour_palettes <- list(
+  `main` = sss_colour_values[c("navy", "pink", "purple", "orange")],
+  `main-extended` = sss_colour_values[c(
+    "navy", "pink", "purple",
+    "orange", "dark-green", "green",
+    "brown", "light-pink"
+  )],
+  `sequential` = sss_colour_values[c("dark-blue", "mid-blue", "light-blue")],
+  `focus` = sss_colour_values[c("dark-blue", "grey")]
+)
+
+usethis::use_data(sss_colour_values, sss_colour_palettes, overwrite = TRUE)
+
+
+### END OF SCRIPT ###
diff --git a/data/sss_colour_palettes.rda b/data/sss_colour_palettes.rda
new file mode 100644
index 0000000..553c69c
Binary files /dev/null and b/data/sss_colour_palettes.rda differ
diff --git a/data/sss_colour_values.rda b/data/sss_colour_values.rda
new file mode 100644
index 0000000..b5c0d2a
Binary files /dev/null and b/data/sss_colour_values.rda differ
diff --git a/man/af_colour_palettes.Rd b/man/af_colour_palettes.Rd
deleted file mode 100644
index f40e328..0000000
--- a/man/af_colour_palettes.Rd
+++ /dev/null
@@ -1,19 +0,0 @@
-% Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/data.R
-\docType{data}
-\name{af_colour_palettes}
-\alias{af_colour_palettes}
-\title{Analysis Function colour palettes}
-\format{
-A character list
-}
-\source{
-\href{https://analysisfunction.civilservice.gov.uk/policy-store/data-visualisation-colours-in-charts/}{Government Analysis Function Colours Guidance}
-}
-\usage{
-af_colour_palettes
-}
-\description{
-A list grouping colours into palettes.
-}
-\keyword{datasets}
diff --git a/man/af_colour_values.Rd b/man/af_colour_values.Rd
index 779bf5a..b3ed4ef 100644
--- a/man/af_colour_values.Rd
+++ b/man/af_colour_values.Rd
@@ -3,18 +3,26 @@
 \docType{data}
 \name{af_colour_values}
 \alias{af_colour_values}
+\alias{af_colour_palettes}
 \title{Analysis Function colour names and hex codes}
 \format{
-A character vector
+An object of class \code{character} of length 9.
+
+An object of class \code{list} of length 5.
 }
 \source{
 \href{https://analysisfunction.civilservice.gov.uk/policy-store/data-visualisation-colours-in-charts/}{Government Analysis Function Colours Guidance}
 }
 \usage{
 af_colour_values
+
+af_colour_palettes
 }
 \description{
-A vector containing colour names and their corresponding
-hex code.
+\itemize{
+\item \code{af_colour_values} is a vector containing colour names and their corresponding
+hex codes.
+\item \code{af_colour_palettes} is a list grouping colours into palettes.
+}
 }
 \keyword{datasets}
diff --git a/man/scale_colour_continuous_sg.Rd b/man/scale_colour_continuous_sg.Rd
index d266b12..a1cb633 100644
--- a/man/scale_colour_continuous_sg.Rd
+++ b/man/scale_colour_continuous_sg.Rd
@@ -6,7 +6,7 @@
 \usage{
 scale_colour_continuous_sg(
   palette = "sequential",
-  palette_type = c("sg", "af"),
+  palette_type = c("sg", "sss", "af"),
   reverse = FALSE,
   na_colour = "grey50",
   guide = "colourbar",
@@ -17,8 +17,9 @@ scale_colour_continuous_sg(
 \item{palette}{Name of palette to use; e.g. "main", "sequential", "focus".
 Default value is "sequential".}
 
-\item{palette_type}{Either "sg" to use Scottish Government palettes, or "af"
-to use Analysis Function palettes. Defaults to "sg".}
+\item{palette_type}{Either `sg` to use Scottish Government palettes, `sss`
+to use Social Security Scotland palettes or `af` to use Analysis Function
+palettes. Defaults to `sg`.}
 
 \item{reverse}{Boolean value to indicate whether the palette should be
 reversed.}
diff --git a/man/scale_colour_discrete_sg.Rd b/man/scale_colour_discrete_sg.Rd
index 6e45d85..d26c18c 100644
--- a/man/scale_colour_discrete_sg.Rd
+++ b/man/scale_colour_discrete_sg.Rd
@@ -6,7 +6,7 @@
 \usage{
 scale_colour_discrete_sg(
   palette = "main",
-  palette_type = c("sg", "af"),
+  palette_type = c("sg", "sss", "af"),
   reverse = FALSE,
   ...
 )
@@ -15,8 +15,9 @@ scale_colour_discrete_sg(
 \item{palette}{Name of palette to use; e.g. "main", "sequential", "focus."
 Default value is "main".}
 
-\item{palette_type}{Either "sg" to use Scottish Government palettes, or "af"
-to use Analysis Function palettes. Defaults to "sg".}
+\item{palette_type}{Either `sg` to use Scottish Government palettes, `sss`
+to use Social Security Scotland palettes or `af` to use Analysis Function
+palettes. Defaults to `sg`.}
 
 \item{reverse}{Boolean value to indicate whether the palette should be
 reversed.}
diff --git a/man/scale_fill_continuous_sg.Rd b/man/scale_fill_continuous_sg.Rd
index 77b2389..964908b 100644
--- a/man/scale_fill_continuous_sg.Rd
+++ b/man/scale_fill_continuous_sg.Rd
@@ -6,7 +6,7 @@
 \usage{
 scale_fill_continuous_sg(
   palette = "sequential",
-  palette_type = c("sg", "af"),
+  palette_type = c("sg", "sss", "af"),
   reverse = FALSE,
   na_colour = "grey50",
   guide = "colourbar",
@@ -17,8 +17,9 @@ scale_fill_continuous_sg(
 \item{palette}{Name of palette to use; e.g. "main", "sequential", "focus."
 Default value is "sequential".}
 
-\item{palette_type}{Either "sg" to use Scottish Government palettes, or "af"
-to use Analysis Function palettes. Defaults to "sg".}
+\item{palette_type}{Either `sg` to use Scottish Government palettes, `sss`
+to use Social Security Scotland palettes or `af` to use Analysis Function
+palettes. Defaults to `sg`.}
 
 \item{reverse}{Boolean value to indicate whether the palette should be
 reversed.}
diff --git a/man/scale_fill_discrete_sg.Rd b/man/scale_fill_discrete_sg.Rd
index 8010194..f1af433 100644
--- a/man/scale_fill_discrete_sg.Rd
+++ b/man/scale_fill_discrete_sg.Rd
@@ -6,17 +6,18 @@
 \usage{
 scale_fill_discrete_sg(
   palette = "main",
-  palette_type = c("sg", "af"),
+  palette_type = c("sg", "sss", "af"),
   reverse = FALSE,
   ...
 )
 }
 \arguments{
 \item{palette}{Name of palette to use; e.g. "main", "sequential", "focus."
-Default value is "main."}
+Default value is "main".}
 
-\item{palette_type}{Either "sg" to use Scottish Government palettes, or "af"
-to use Analysis Function palettes. Defaults to "sg".}
+\item{palette_type}{Either `sg` to use Scottish Government palettes, `sss`
+to use Social Security Scotland palettes or `af` to use Analysis Function
+palettes. Defaults to `sg`.}
 
 \item{reverse}{Boolean value to indicate whether the palette should be
 reversed.}
diff --git a/man/sg_colour_palettes.Rd b/man/sg_colour_palettes.Rd
deleted file mode 100644
index 4b2295b..0000000
--- a/man/sg_colour_palettes.Rd
+++ /dev/null
@@ -1,19 +0,0 @@
-% Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/data.R
-\docType{data}
-\name{sg_colour_palettes}
-\alias{sg_colour_palettes}
-\title{Scottish Government colour palettes}
-\format{
-A character list
-}
-\source{
-\href{https://designsystem.gov.scot/guidance/charts/data-visualisation-colour-palettes}{Scottish Government Design System}
-}
-\usage{
-sg_colour_palettes
-}
-\description{
-A list grouping colours into palettes.
-}
-\keyword{datasets}
diff --git a/man/sg_colour_values.Rd b/man/sg_colour_values.Rd
index ac8993c..87bbc1e 100644
--- a/man/sg_colour_values.Rd
+++ b/man/sg_colour_values.Rd
@@ -3,18 +3,26 @@
 \docType{data}
 \name{sg_colour_values}
 \alias{sg_colour_values}
+\alias{sg_colour_palettes}
 \title{Scottish Government colour names and hex codes}
 \format{
-A character vector
+An object of class \code{character} of length 11.
+
+An object of class \code{list} of length 4.
 }
 \source{
 \href{https://designsystem.gov.scot/guidance/charts/data-visualisation-colour-palettes}{Scottish Government Design System}
 }
 \usage{
 sg_colour_values
+
+sg_colour_palettes
 }
 \description{
-A vector containing colour names and their corresponding
-hex code.
+\itemize{
+\item \code{sg_colour_values} is a vector containing colour names and their corresponding
+hex codes.
+\item \code{sg_colour_palettes} is a list grouping colours into palettes.
+}
 }
 \keyword{datasets}
diff --git a/man/sss_colour_values.Rd b/man/sss_colour_values.Rd
new file mode 100644
index 0000000..54d72e7
--- /dev/null
+++ b/man/sss_colour_values.Rd
@@ -0,0 +1,25 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/data.R
+\docType{data}
+\name{sss_colour_values}
+\alias{sss_colour_values}
+\alias{sss_colour_palettes}
+\title{Social Security Scotland colour names and hex codes}
+\format{
+An object of class \code{character} of length 12.
+
+An object of class \code{list} of length 4.
+}
+\usage{
+sss_colour_values
+
+sss_colour_palettes
+}
+\description{
+\itemize{
+\item \code{sss_colour_values} is a vector containing colour names and their corresponding
+hex codes.
+\item \code{sss_colour_palettes} is a list grouping colours into palettes.
+}
+}
+\keyword{datasets}
diff --git a/vignettes/colours.Rmd b/vignettes/colours.Rmd
index a470550..54ae650 100644
--- a/vignettes/colours.Rmd
+++ b/vignettes/colours.Rmd
@@ -25,10 +25,12 @@ table_note <- paste(
 )
 ```
 
-sgplot provides colour palettes as set out by the [Scottish Government Design System](https://designsystem.gov.scot/guidance/charts/data-visualisation-colour-palettes). 
+sgplot provides [Scottish Government branded colour palettes](#sg) as set out by the [Scottish Government Design System](https://designsystem.gov.scot/guidance/charts/data-visualisation-colour-palettes). 
 
 These palettes have been developed to meet the [Web Content Accessibility Guidelines 2.1 for graphical objects](https://www.w3.org/WAI/WCAG21/Understanding/non-text-contrast.html). The colours in the [main palette for categorical data](#main-palette) all have at least a 3:1 colour contrast ratio with white (#ffffff) and off-white (#f8f8f8) backgrounds, as well as with adjacent colours in the palette. 
 
+In addition to the default [Scottish Government palettes](#sg), sgplot also supports the use of branded palettes for [Social Security Scotland](#sss) and the [Government Analysis Function](#af).
+
 
 ## Things to consider when using colour
 
@@ -49,11 +51,13 @@ The following are a few key things to consider when using colour in data visuali
 *   Use colour palettes in the order presented to ensure adjacent colours have sufficient contrast with each other
 
 
-## Scottish Government colour palettes
+## Colour palettes in sgplot
+
+### Scottish Government {#sg}
 
 The Scottish Government colour palettes are used by default in sgplot.
 
-### Main palette
+#### Main palette
 
 The `main` palette should be used with categorical data.
 
@@ -72,7 +76,7 @@ sgplot:::colour_table(sgplot::sg_colour_palettes$`main-extended`)
 ```
 
 
-### Sequential palette
+#### Sequential palette {#sg-sequential}
 
 The `sequential` colour palette should be used for data where the order has some meaning.
 
@@ -87,7 +91,7 @@ Neither `dark-blue` or `light-blue` have sufficient colour contrast with `mid-bl
 Follow the [advice for using the sequential palette](https://analysisfunction.civilservice.gov.uk/policy-store/data-visualisation-colours-in-charts/#section-6) in the Analysis Function colour guidance when using this palette.
 
 
-### Focus palette
+#### Focus palette {#sg-focus}
 
 The `focus` palette should be used to highlight specific elements of a plot.
 
@@ -100,12 +104,63 @@ sgplot:::colour_table(sgplot::sg_colour_palettes$focus)
 The `grey` in this palette does not meet the required colour contrast with an off-white background (#f8f8f8), therefore charts using this palette should only use a white background (#ffffff).
 
 
-## Analysis Function colour palettes
+### Social Security Scotland {#sss}
+
+To use a Social Security Scotland palette, set `palette_type = "sss"` when using any of the `scale_` [colour functions](https://scotgovanalysis.github.io/sgplot/reference/index.html#colour-scales).
+
+#### Main palette
+
+The `main` palette should be used with categorical data.
+
+`r table_note`
+
+```{r}
+sgplot:::colour_table(sgplot::sss_colour_palettes$main)
+```
+
+You should try to use an absolute maximum of four colours in a chart. If you feel you need more than four, think about how you could redesign your chart to avoid this. If you absolutely must use more than four colours, the `main-extended` palette can be used.
+
+`r table_note`
 
-The Analysis Function guidance also contains [suggested colour palettes](https://analysisfunction.civilservice.gov.uk/policy-store/data-visualisation-colours-in-charts/#section-4). These are also provided in sgplot, however the Scottish Government palettes are used by default. To use an Analysis Function palette, set `palette_type = "af"` when using any of the `scale_` [colour functions](https://scotgovanalysis.github.io/sgplot/reference/index.html#colours).
+```{r}
+sgplot:::colour_table(sgplot::sss_colour_palettes$`main-extended`)
+```
 
 
-### Main palette
+#### Sequential palette
+
+The `sequential` colour palette should be used for data where the order has some meaning. This palette is the same as the [Scottish Government sequential palette](#sg-sequential).
+
+`r table_note`
+
+```{r}
+sgplot:::colour_table(sgplot::sss_colour_palettes$sequential)
+```
+
+As this palette is restricted to tints of one colour, there are issues with colour contrast.
+Neither `dark-blue` or `light-blue` have sufficient colour contrast with `mid-blue`. 
+Follow the [advice for using the sequential palette](https://analysisfunction.civilservice.gov.uk/policy-store/data-visualisation-colours-in-charts/#section-6) in the Analysis Function colour guidance when using this palette.
+
+
+#### Focus palette
+
+The `focus` palette should be used to highlight specific elements of a plot.This palette is the same as the [Scottish Government focus palette](#sg-focus).
+
+`r table_note`
+
+```{r}
+sgplot:::colour_table(sgplot::sss_colour_palettes$focus)
+```
+
+The `grey` in this palette does not meet the required colour contrast with an off-white background (#f8f8f8), therefore charts using this palette should only use a white background (#ffffff).
+
+
+### Government Analysis Function {#af}
+
+The Government Analysis Function guidance also contains [suggested colour palettes](https://analysisfunction.civilservice.gov.uk/policy-store/data-visualisation-colours-in-charts/#section-4). These are also provided in sgplot, however the Scottish Government palettes are used by default. To use an Analysis Function palette, set `palette_type = "af"` when using any of the `scale_` [colour functions](https://scotgovanalysis.github.io/sgplot/reference/index.html#colour-scales).
+
+
+#### Main palette
 
 The `main` palette should be used with categorical data.
 
@@ -133,7 +188,7 @@ sgplot:::colour_table(sgplot::af_colour_palettes$main6)
 ```
 
 
-### Sequential palette
+#### Sequential palette
 
 The `sequential` colour palette should be used for data where the order has some meaning.
 
@@ -147,7 +202,7 @@ As this palette is restricted to tints of one colour, there are issues with colo
 Follow the [advice for using the sequential palette](https://analysisfunction.civilservice.gov.uk/policy-store/data-visualisation-colours-in-charts/#section-6) in the Analysis Function colour guidance when using this palette.
 
 
-### Focus palette
+#### Focus palette
 
 The `focus` palette should be used to highlight specific elements of a plot.
 
@@ -173,7 +228,7 @@ An example of how to use an alternative colour palette is provided in the [cookb
 However, if you use a different palette regularly and feel it would be useful for this to be added to sgplot, please make a suggestion as per the [contributing guidance](https://scotgovanalysis.github.io/sgplot/CONTRIBUTING.html).
 
 
-## Viewing Palettes in R
+## Viewing palettes in R
 
 Names and hex codes for available colours and palettes can be viewed by running the following code:
 
@@ -187,8 +242,11 @@ sgplot::sg_colour_palettes
 # View names and hex codes for `main` colour palette
 sgplot::sg_colour_palettes$main
 
+# For Social Security Scotland palettes, use the sss_ prefix
+sgplot::sss_colour_palettes
+
 # For Analysis Function palettes, use the af_ prefix
 sgplot::af_colour_palettes
 ```
 
-Examples of how to apply these palettes to ggplot2 charts are available in both the [cookbook](https://scotgovanalysis.github.io/sgplot/articles/cookbook.html) and the reference files for `scale_` [colour functions](https://scotgovanalysis.github.io/sgplot/reference/index.html#colours).
+Examples of how to apply these palettes to ggplot2 charts are available in both the [cookbook](https://scotgovanalysis.github.io/sgplot/articles/cookbook.html) and the reference files for `scale_` [colour functions](https://scotgovanalysis.github.io/sgplot/reference/index.html#colour-scales).
diff --git a/vignettes/cookbook/_colour-palettes.Rmd b/vignettes/cookbook/_colour-palettes.Rmd
index 24ec256..d7affa5 100644
--- a/vignettes/cookbook/_colour-palettes.Rmd
+++ b/vignettes/cookbook/_colour-palettes.Rmd
@@ -43,7 +43,7 @@ gapminder |>
 
 Note: This chart is for demonstration purposes only. Accessibility guidance recommends using a maximum of four colours to avoid clutter.
 
-To use an Analysis Function palette, set `palette_type = "af"` when using any of the `scale_` [colour functions](https://scotgovanalysis.github.io/sgplot/reference/index.html#colours). 
+To use an Analysis Function palette, set `palette_type = "af"` when using any of the `scale_` [colour functions](https://scotgovanalysis.github.io/sgplot/reference/index.html#colour-scales). 
 For example, to use the Analysis Function `main2` palette:
 
 ```{r af-palette, fig.height = 5}