Listening to @Meyerweb on Syntax.fm...

About `color-mix()`... It's not coming in the future. It's already here!

Safari shipped `color-mix()` in Safari 16.2, in Dec 2022.

I showed how it works in "What's new in CSS" at WWDC23. https://developer.apple.com/videos/play/wwdc2023/10121?time=795

Color mix was also part of Interop 2023, and shipped in Chrome and Firefox in the spring of 2023.
https://caniuse.com/?search=color-mix