[null and void]

I was going with RGB light not YMC pigments.

I further abstracted it to perceived colors, as in red-green are a color receptor pair, as are blue-yellow. (Based on the flavors of color blindness). IOW, I pretty much made if up as I was going along...

Besides, I’m a guy. We can only name 5 colors...

[SAJ]

With respect, null old boy, the primaries in LIGHT are, as you note, R G and B and there is no colour receptor pair blue-yellow. There is indeed blue-green, a flavour of colour blindness of which I'm quite aware: I have it to what the docs call a 'degraded' extent. Never been really sure what that means, but there are a couple of shades of blue and quite a few shades of green that I simply cannot distinguish.

In RGB colour schemas, yellow light is a combination of equal intensities of 'pure' (haha) red light + green light.

And, fwiw, I'm not making it up as I go along. Mixing inks in my father's press room as a boy and assisting in the R&D of the old Diamond monitors for 2 1/2 yrs have given me quite a fair background in the subject.