@[email protected] @[email protected] it's a really deep rabbit hole - rgb is actually a terrible way of representing colours even at the basic level of being able to try and define all visible colours (see colour spaces en.wikipedia.org/wiki/Color_...) and that's before you even get to things like how different pigments change in different ambient light vs how projected colours are perceived in different brightness of light or how the texture of your paper changes the apparent ink colour...