Might as well use the same system absolutely everyone use in every software ever : a color picker. You get everything, color space choice, a palette and hexadecimal representation. It cannot be more exhaustive than that. You would just have to choose the texture/material beforehand.
Well, that would be even better though it sounds as though it might be too radical an overhaul of BG3’s current interface. I’d be happy with a compromise solution that made better use of the functionality similar to that already displayed in the CC (given tattoos and makeup already let you pick a colour and then intensity) but if Larian go all out with letting us pick a texture and then customise colours to our hearts’ content I’ll be delighted!
