Lea Verou on Nostr: #CSSTip: Create variations of a color before Relative Color Syntax is implemented, ...

#CSSTip: Create variations of a color before Relative Color Syntax is implemented, with color-mix() and the `none` keyword:
https://codepen.io/leaverou/pen/gOZZQZb?editors=1100

There I only vary (oklch) lightness, but you can do the same thing for any component of any color function — or even alpha.