I have a fun question to pose. What are the four most distinct colors? (Can expand to any positive *n* integer). Three is easy. RGB. They make up the entire color spectrum.*. Same with CMYK but black and white is cheating. So if I were to draw a square inset on a color wheel, I would get 4 distinct colors (as well as vectors or coordinates on a unit circle) but are these 4 the most distinct? From each other, mathematically, sure, but the eye doesn’t see all colors equally.
White light, the visible spectrum, stretches from approximately 380nm to 760nm but this means pretty much jack squat because neither is daylight perfectly white in the spectrum with a plurality of wavelengths of light blue (which is why we perceive the sky that way) nor does the human eye see all colors equally with our photoreceptors which is a different factoid as to why night vision is green because we perceive the most differences in that color nor am I accounting for differences in color emulation on screen vs print.
*not a bio student, just a very high technically inclined rose with one question that spiraled.
