interesting that there’s still advances on better mapping colors to the human perceptual system:

In an ideal perceptual color space, the distance of 2 points in the space would correlate strongly with the perception of color difference. Put another way, all pairs separated by a “just noticeable difference” would be separated by an equal distance.

As it turns out, such a thing is no more possible than flattening an orange peel, because color perception is inherently non-euclidean. To put it simply, our eyes are more sensitive to small changes in hue than small changes in lightness or color saturation.

Even so, like map projections, it is possible to make a color space that approximates perceptual uniformity and is useful for various tasks. 1 of these, a primary focus of this blog post, is smoother gradients.

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