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It's a shame the article doesn't go deep enough to encounter perceptual uniformity. In short, the human visual system is strongly non-linear. We perceive more g
by itishappy 2y ago
It's a shame the article doesn't go deep enough to encounter perceptual uniformity. In short, the human visual system is strongly non-linear. We perceive more greens than blues or reds. None of the color systems mentioned in the article (including the CIE 1931 chromaticity diagram at the end) are perceptually uniform. The 1976 color spaces (CIELuv and CIELab) were introduced as an attempt to deal with this, and there's been many other attempts since.
My favorite is OKLab:
https://bottosson.github.io/posts/oklab/ https://bottosson.github.io/posts/oklab/
- quietbritishjim 2y ago> We perceive more greens than blues or reds. As I said in reply to the sibling comment, this is essentially the opposite of my point: it seems to suggest that green should take up a disproportionately large part of the colour wheel (in fact, that's what the article's suggested wheel at the end does), but I'm saying it should take up less. But, as I mentioned in my other comment, an experienced perception of green looking similar to physically nearby colours is not necessarily related to our ability to "perceive more greens". I haven't seen OKLab before, thanks. But it seems to be more about the perceived lightness of different hues, which is something different again.
- itishappy 2y agoYou're right, I have it flipped. We see fewer greens and more blues. https://en.wikipedia.org/wiki/Color_difference https://en.wikipedia.org/wiki/Color_difference https://en.wikipedia.org/wiki/Color_difference#/media/File:CIExy1931_MacAdam.png https://en.wikipedia.org/wiki/Color_difference#/media/File:C... You probably be more interested in or CIELab. OKLab builds off this and tries to fix lightness. https://en.wikipedia.org/wiki/CIELAB_color_space https://en.wikipedia.org/wiki/CIELAB_color_space The Munsell Color system is also pretty cool. https://en.wikipedia.org/wiki/Munsell_color_system https://en.wikipedia.org/wiki/Munsell_color_system