#895B4F

CSS

:root {
  --root-beer: #895b4f;
  --root-beer-rgb: 137 91 79;
  --root-beer-oklch: oklch(0.518 0.064 35.3);
}

.element {
  color: var(--root-beer);
  background-color: hsl(12 27% 42%);
  border-color: oklch(0.518 0.064 35.3);
}

Tailwind CSS v4

@theme {
  --color-root-beer: #895b4f;
  --color-root-beer-50: #ffefe8;
  --color-root-beer-100: #fce1d9;
  --color-root-beer-200: #eecbc1;
  --color-root-beer-300: #d6ada0;
  --color-root-beer-400: #c19185;
  --color-root-beer-500: #ac7769;
  --color-root-beer-600: #916559;
  --color-root-beer-700: #755147;
  --color-root-beer-800: #563a34;
  --color-root-beer-900: #3c2823;
  --color-root-beer-950: #261612;
}

SCSS

$root-beer: #895b4f;
$root-beer-rgb: 137, 91, 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);
}