#8E5C59

CSS

:root {
  --root-beer: #8e5c59;
  --root-beer-rgb: 142 92 89;
  --root-beer-oklch: oklch(0.528 0.066 23.3);
}

.element {
  color: var(--root-beer);
  background-color: hsl(3 23% 45%);
  border-color: oklch(0.528 0.066 23.3);
}

Tailwind CSS v4

@theme {
  --color-root-beer: #8e5c59;
  --color-root-beer-50: #ffeeec;
  --color-root-beer-100: #fee0dd;
  --color-root-beer-200: #f0cac6;
  --color-root-beer-300: #d8aba6;
  --color-root-beer-400: #c38f8c;
  --color-root-beer-500: #ae7571;
  --color-root-beer-600: #936360;
  --color-root-beer-700: #764f4d;
  --color-root-beer-800: #573938;
  --color-root-beer-900: #3d2726;
  --color-root-beer-950: #261515;
}

SCSS

$root-beer: #8e5c59;
$root-beer-rgb: 142, 92, 89;
$root-beer-light: mix(#fff, $root-beer, 20%);
$root-beer-dark: mix(#000, $root-beer, 20%);

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