> HSLuv is just like LCH To be clear, HSLuv, is based on CIELCHuv, the cylindrical transformation of CIELUV [0]; the LCH in David Johnstone's colour picker is

> HSLuv is just like LCH To be clear, HSLuv, is based on CIELCHuv, the cylindrical transformation of CIELUV [0]; the LCH in David Johnstone's colour picker is CIELCHab, the cylindrical transformation of CIELAB [1]. Of course, that doesn't contradict your comment about the pros and cons of HSLuv's "saturation" component. [0] https://en.wikipedia.org/wiki/CIELUV https://en.wikipedia.org/wiki/CIELUV [1] https://en.wikipedia.org/wiki/CIELAB_color_space https://en.wikipedia.org/wiki/CIELAB_color_space