Rare Rhubarb

CSS

:root {
  --rare-rhubarb: #cc0022;
  --rare-rhubarb-rgb: 204 0 34;
  --rare-rhubarb-oklch: oklch(0.533 0.216 24.7);
}

.element {
  color: var(--rare-rhubarb);
  background-color: hsl(350 100% 40%);
  border-color: oklch(0.533 0.216 24.7);
}

Tailwind CSS v4

@theme {
  --color-rare-rhubarb: #cc0022;
  --color-rare-rhubarb-50: #ffded4;
  --color-rare-rhubarb-100: #ffccc1;
  --color-rare-rhubarb-200: #ffafa2;
  --color-rare-rhubarb-300: #ff867a;
  --color-rare-rhubarb-400: #ff5c5a;
  --color-rare-rhubarb-500: #f42133;
  --color-rare-rhubarb-600: #ce212d;
  --color-rare-rhubarb-700: #a61b24;
  --color-rare-rhubarb-800: #7c101c;
  --color-rare-rhubarb-900: #580b12;
  --color-rare-rhubarb-950: #3b0005;
}

SCSS

$rare-rhubarb: #cc0022;
$rare-rhubarb-rgb: 204, 0, 34;
$rare-rhubarb-light: mix(#fff, $rare-rhubarb, 20%);
$rare-rhubarb-dark: mix(#000, $rare-rhubarb, 20%);

.element {
  color: $rare-rhubarb;
  box-shadow: 0 0 0 2px rgba($rare-rhubarb, 0.35);
}