open-props/red.min.css

<div align="center"> 

:where(html){--red-0:#fff5f5;--red-1:#ffe3e3;--red-2:#ffc9c9;--red-3:#ffa8a8;--red-4:#ff8787;--red-5:#ff6b6b;--red-6:#fa5252;--red-7:#f03e3e;--red-8:#e03131;--red-9:#c92a2a;--red-10:#b02525;--red-11:#962020;--red-12:#7d1a1a}