3 ms·

I don't know about 'by hue' but almost all colors are not in the rainbow. The spectral locus is a line that runs around the edge of a 2D color space (technicall

I don't know about 'by hue' but almost all colors are not in the rainbow. The spectral locus is a line that runs around the edge of a 2D color space (technically 3D if you include luminance as well...). 7D if you are a mantis shrimp.

rlonstein 9y ago
> 7D if you are a mantis shrimp. Don't be sure: * https://www.popsci.com/blog-network/ladybits/mantis-shrimp-vision-not-mindblowing-you%E2%80%99ve-been-told https://www.popsci.com/blog-network/ladybits/mantis-shrimp-v... * https://phys.org/news/2014-01-mantis-shrimp-vision-differently-video.html https://phys.org/news/2014-01-mantis-shrimp-vision-different... Though they do see polarization, which is a neat feature.