Mind blowing facts, from the Atlantic

Which also means that you can’t see it on any computer screen, so any image you find on Wikipedia or anywhere else is an approximation.

Is it possible/likely that someone with dichromacy and inoperable L cones would have already observed this color? Or would they need to have tricolor vision to learn to perceive it?

I read that people with monochromacy only perceive grayscale which implies that the brain needs the three types of cones to map out the colorspace.