Using color-mix() to create opacity variants

Build an alpha color system without splitting out channels using this one neat trick.

How Colors are Created in the Digital World – Reed Art & Imaging

How do I apply opacity to a CSS color variable? - Stack Overflow

What is Color Theory?

opacity - rgba color mixing css - Stack Overflow

Color Theory 101: A Complete Guide to Color Wheels & Color Schemes

CSS color-mix() Chrome for Developers

Simplify Your Color Palette With CSS Color-Mix() — Smashing Magazine

Using color-mix() to create opacity variants

Simplify Your Color Palette With CSS Color-Mix() — Smashing Magazine