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Physics

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    $\begingroup$ It is not clear what you mean by the visible light spectrum. Do you mean the spectrum that comes from the sun? Or are you referring to the sensitivity of the human eye to the wavelength spectrum? $\endgroup$
    – flippiefanus
    Commented Feb 11, 2021 at 2:41
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    $\begingroup$ An important concept here is gamut $\endgroup$
    – PM 2Ring
    Commented Feb 11, 2021 at 3:11
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    $\begingroup$ en.wikipedia.org/wiki/Cone_cell#/media/… Maybe this image? nything with a wavelength x axis in nanometers should be good. A lot of it is taken up by red. $\endgroup$
    – user1379857
    Commented Feb 11, 2021 at 3:55
  • $\begingroup$ Seems like the author of that image was careful to try to normalize things. OP should find that image useful. $\endgroup$
    – prolyx
    Commented Feb 11, 2021 at 4:15
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    $\begingroup$ Even without getting into things like 'your red is my green' a brief perusal of color-based optical illusions (what color is this dress!) shows that there's a ton of things going on behind the scenes in the brain beyond just relaying the raw data. It's quite possible the answer to this question is slightly different for each person -- I doubt you can find two people who react exactly in the same way to identical optical stimulus. $\endgroup$
    – eps
    Commented Feb 11, 2021 at 17:14