uhh hm idk how to really talk about this since i’m not really confident with colour theory lingo, though i know some basics.
the stuff i choose in the beginning normally is a saturated and lighter version than what the finished product will be, normally, and i usually just play it by eye depending on what mood or what the lighting is ie. sunrise/sunset which is my favourite, usually ends up with really warm, bright, saturated colours, while evening or before sunrise its usually cooler and less saturated and cooler, and then middle of the day is almost “white light” and “true” colours
idk the thing i do is high contrast and saturation, called chiaroscuro so most of the colours i pick are for high contrasting, highly saturated and warm environments while still being naturalistic, and i mostly go: what is the current environment lighting in scene > what mood do i want to convey > what is the colour of the object naturally > what is the colour of the object under these conditions
but i still fiddle with the colours and they can end up different from my initial plan, and i end up doing a lot of levels and contrast work:
i usually try to pick like, one or two major “bright” colours like red or blue or green and then a bunch of “mud” colours to fill in and boost the chosen colours
sorry i really don’t know how to put it into words i honestly just pick and see what works and fiddle with the levels and contrast until i have something i like and works