(#theWorkshop, tasteweb) trying to get randomly generated colors to look right. So I'm using the HSLuv colorspace and.. uh.. are some HSLuv implementations worse than others??
I do not attest that the luminance or saturation of the yellow user is perceptibly the same as the luminance or saturation of the pink user!
Yeah okay I'm looking at https://www.hsluv.org/ , presumably this is standard, at the brighter end of things, yellow hues is generally.. more, than other hues, HSLuv just isn't up to the job.
@faun That's expected. The H, S, and L parameters let you exceed the perceptually uniform area in HSLuv. If you want it to definitely be uniform, you should use HPLuv, which restricts the addressable area to be perceptually uniform.
@cancel So the issue is that it's impossible for there to be a saturated pink with the same lightness as saturated yellow and I'm chasing a purely imaginary color? haha
@faun That pink does exist. But computer displays (or TVs or whatever) that are limited to displaying the sRGB specified range of colors cannot display them.
@faun HSLuv and HPLuv are hard-coded to map to and from sRGB space. If you wanted to map to Display P3 or ITU-R BT.2020 with similar H, S, and L parameters, you'd need to recalculate the HSLuv and HPLuv code (like the constants baked into the source code) with different mappings run through their code calculation script.
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