Build Colors from Colors with CSS Relative Color Syntax

from blog Hearthside by Caleb Hearth, | ↗ original
This is a post I’m mostly writing for my future self, because I can never remember the actual term for the CSS feature that lets you define a color based on another color (it’s “CSS Relative Color”) and “color mix” which is what I keep wanting the feature to be called never turns up any results...