Color_temp in Scenes

[ruttromp]

The problem

Log message:

Got color_temp argument in turn_on service, which is deprecated and will break in Home Assistant 2026.1, please use color_temp_kelvin argument

How to reproduce:

• Create a new Scene
• Add light bulb with color temp support and turn it on
• activate created Scene

Looks like some part of HA still use the deprecated color_temp

What version of Home Assistant Core has the issue?

2025.1.0

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Container

Integration causing the issue

Scenes

Link to integration documentation on our website

https://developers.home-assistant.io/blog/2024/12/14/kelvin-preferred-color-temperature-unit/

Diagnostics information

No response

Example YAML snippet

supported_color_modes:
  - color_temp
color_mode: color_temp

Anything in the logs that might be useful for us?

No response

Additional information

No response

[rrooggiieerr]

Which integration is your light entity from? I think that one needs to be updated.

[home-assistant]

Hey there @home-assistant/core, mind taking a look at this issue as it has been labeled with an integration (scene) you are listed as a code owner for? Thanks!

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[ruttromp]

@rrooggiieerr I'm using Z2M and Tradfri bulbs

[Mayhem-SWE]

Last I checked, it seemed scenes would only accept whichever color temperature parameter that was native to a light. I have a mix of Philips Hue bulbs connected through a Hue Bridge and IKEA Trådfri bulbs connected through ZHA with SkyConnect, which all say only supported_color_modes: color_temp (well Hue color bulbs also support xy).

I just manually edited a scene to only use color_temp_kelvin and to my surprise this did work now, for lights connected through either of the above integrations. Unfortunately still was not possible to specify brightness_pct in a scene rather than brightness though…

[popy2k14]

Exact same issue (log entries) since 2025.1

[DenverOps]

This also happened to me with Hue lights connected directly to Z2M. I unselected the Color Temp setting and saved my automation.

[OnkelBuTscH]

I have also received this message since the 2025 update.

“WARNING (MainThread) [homeassistant.components.light] Got kelvin argument in turn_on service, which is deprecated and will break in Home Assistant 2026.1, please use color_temp_kelvin argument”

I simply replaced “kelvin” with “color_temp_kelvin” in the yaml view for the automations in question. And so far everything is working again without this message appearing again.