Google's Material You uses this to initiate color theming (n.b. Celebi's, note usage of Lab / notHSL, respect Cartesian / polar nature of inputs / outputs, an

Google's Material You uses this to initiate color theming (n.b. Celebi's, note usage of Lab / notHSL, respect Cartesian / polar nature of inputs / outputs, and ask for high-K, 128 is what we went with but it's arbitrary. Can get away with as few as 32 if you're ex. Doing brand color from favicon)