[huula]

Good point, just blindly select several "harmonious" colors are not hard at all. But as some folks pointed out, if we want to also consider the context (where the colors will be used, is it a button? or background? or text?), deep learning is definitely a good fit.

[jcoffland]

Do you have any evidence that ML is a good fit? You seem so sure.

[Jack000]

the choice of a CNN makes more sense if you think of a color palette as an extremely low-resolution image rather than a basket of colors.

positioning in a palette matters because colors are perceived relatively.