#8D574F

CSS

:root {
  --root-beer: #8d574f;
  --root-beer-rgb: 141 87 79;
  --root-beer-oklch: oklch(0.515 0.073 29);
}

.element {
  color: var(--root-beer);
  background-color: hsl(8 28% 43%);
  border-color: oklch(0.515 0.073 29);
}

Tailwind CSS v4

@theme {
  --color-root-beer: #8d574f;
  --color-root-beer-50: #ffeee9;
  --color-root-beer-100: #ffe0d9;
  --color-root-beer-200: #f2c9c1;
  --color-root-beer-300: #daaaa1;
  --color-root-beer-400: #c68e86;
  --color-root-beer-500: #b2736a;
  --color-root-beer-600: #96625a;
  --color-root-beer-700: #784e48;
  --color-root-beer-800: #593835;
  --color-root-beer-900: #3e2724;
  --color-root-beer-950: #271513;
}

SCSS

$root-beer: #8d574f;
$root-beer-rgb: 141, 87, 79;
$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);
}