Many people know about CIE Lab. It’s quite close to human perception of color, but the handling of hue is not great. For example, a gradient between blue and white turns out purple in CIE Lab, similar to in sRGB. Some color spaces handle hue well but have other issues to consider.

When I left my job in gaming to pursue education and consulting, I had a bit of time to tackle this problem. Oklab is my attempt to find a better balance, something Lab-like but “okay”.