FWIW, I was exploring teaching color in K-2 using spectra. Here's[1] an old development snapshot, showing a color "wheel". Intent was a correct 3D perceptual co

FWIW, I was exploring teaching color in K-2 using spectra. Here's[1] an old development snapshot, showing a color "wheel". Intent was a correct 3D perceptual color space (that snapshot isn't quite it), coupled with perceptual ("color") and physical ("light") spectra. Sort of the old art-school teaching from Munsell, but able to deal with materials and light. Absent an existing pedagogical perceptual color space (pedagogical: one without lots of "first thing you notice" features that are all bogus model artifacts), I kludged CAM16UCS with JzAzBz hue linearization and tweaks. The author isn't wrong about current color instruction having dreadful content and outcomes. Ask first-tier non-astronomy physical-sciences graduate students what color the Sun is, and you commonly hear answers like "it doesn't have a color" and "it's rainbow color". Kids attempting to apply the models taught to their paints and pens and programs get... mixed results. [1] https://imgur.com/a/zOtxQwe https://imgur.com/a/zOtxQwe