OkChroma

All the sRGB colours in a Hilbert curve, sorted by their chroma/saturation/intensity in Björn Ottosson's Oklab colourspace.

Computing was similar to my previous Distance From OkZero entry, but with the L component fixed to 0 (M-script based syntax):

1. W = M2(2:3,:)*(M1*X).^(1/3)
2. for each column w in W: w'*w

where:

• X is a 3x16777216 matrix of sRGB colours converted to linear RGB,
• M1 and M2 as defined in Björn's programming sample in his blog post.

The blockiness in the bottom left corner is not computation error, I checked using ISymPy.

Generated as a farbfeld image with C++ and the Eigen library, then converted to PNG.