[FFmpeg-user] What ffmpeg filter can I use to adjust colour temperature?

[Dmitri]

I am using ffmpeg with a camera and need to adjust colour temperature to
the lighting, adjust to warm/cold/bright white.

I've found an algorithm that calculates temperature in Kelvin to RGB values
(http://www.zombieprototypes.com/?p=210) and tried to use colorbalance
filter by converting result values to -1 - 1 and adjusting midtones.

But it doesn't seem right.

Is there any default filter for that or any other that can take values like
above?
Must be a frequent request for video, but I can't find any examples.

/ Best regards