or human readable HSL. RGB/HEX are horrid creatures only readable by machine, for the most part (tell me what colour #F68C5A is without plugging it into something. Now tell me what colour hsl(65, 80%, 60%) is, knowing that main colours are 60deg apart R Y G C B M)
Halfway down under the heading “HSL is meant to be More Human Understandable!”, although I disagree with some of the things said in this article, like “use whatever you’re used to”. No, use what is best!