The original post: /r/askscience by /u/Joyful_Subreption on 2024-12-14 20:55:10.

If the human eye consists of RGB cones, and hence we have technology like our televisions which use RGB, then why are the primary colors RYB? Moreover, even in most languages, the green/blue split tends to be one of the later color divisions. Most languages distinguish white/black, then red, then a few more colors, and usually the green/blue split comes later.

And yet, our biological color-sensors distinguish green and blue! Can anyone explain what’s going on?