[aw3c2]

CMYK is an subtractive color model, it is not very understandable and definitely not intuitive for human color perception. HSL is much better for that. It all is not too revelant in the end result I think because those are just models and their software exposes certain aspects of colors.

[sp332]

Mixing pigments (ink or paint) can be done in CMYK because it is a subtractive process. It would have been realistic and something that anyone who has played with finger paints or crayons has experienced. (Although I agree that it's not very relevant to the end result, it would have been nice to see it in the discussion.)

[aw3c2]

Geez, I feel stupid about that comment now. Was too much in the "monitors are RGB, CYMK is only for print" but of course, when mixing colors it might be good indeed.