The risk with highly saturated colors is they're more difficult to reproduce accurately in cross-media applications, namely print media. Grays are easy to repr

The risk with highly saturated colors is they're more difficult to reproduce accurately in cross-media applications, namely print media. Grays are easy to reproduce in cross-media applications, in theory. In practice, there's so much variation in displays and print, and human vision is sensitive to achromatic colors, the error is essentially guaranteed and it will be noticeable. So you're almost always better off with colors that aren't achromatic, aren't highly saturated, and aren't memory colors, like skin tones.