Talk:Color vision

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Sentence needs rewriting

In the subsection titled Theories, this sentence appears:

"This phenomenon of complementary colors demonstrates cyan, rather than green, to be the complement of red and magenta, rather than red, to be the complement of green, as well as demonstrating, as a consequence, that the reddish-green color proposed to be impossible by opponent process theory is, in fact, the colour yellow."

I hope someone knowledgeable on this subject can rewrite this sentence in comprehensible English. Ideally this will become more than one sentence, since it appears that too many ideas are crammed into one sentence, making it very hard to understand.50.205.142.50 (talk) 15:01, 25 June 2020 (UTC)[reply]

Perception of near ultraviolet as purple instead of blue

I'm a newbie, but I'd like to request someone knowledgeable edit this page to reflect why we see near ultraviolet as purple/violet and not just really pure blue. I came to this page to learn the answer but instead had to find this elsewhere. The chart showing the sensitivity of the red/green/blue cones suggests that red fades off such that it has no sensitivity to near-UV spectra. Other sites (e.g. https://midimagic.sgc-hosting.com/huvision.htm) show that the red cones have a secondary sensitivity peaking at 420nm and so both red and blue cones are triggered by near-ultraviolet light and we see purple. That makes complete sense, but no way to figure that out from the article as written. Thanks for helping a future searcher and making Wikipedia a better than Quora! TheBeSphereOfCourse (talk) 03:14, 27 June 2020 (UTC)[reply]