#AB6620

CSS

:root {
  --light-brown: #ab6620;
  --light-brown-rgb: 171 102 32;
  --light-brown-oklch: oklch(0.576 0.12 60.9);
}

.element {
  color: var(--light-brown);
  background-color: hsl(30 68% 40%);
  border-color: oklch(0.576 0.12 60.9);
}

Tailwind CSS v4

@theme {
  --color-light-brown: #ab6620;
  --color-light-brown-50: #ffeed3;
  --color-light-brown-100: #ffe0bf;
  --color-light-brown-200: #faca9f;
  --color-light-brown-300: #e3aa76;
  --color-light-brown-400: #d18d50;
  --color-light-brown-500: #be7120;
  --color-light-brown-600: #a1601e;
  --color-light-brown-700: #814c18;
  --color-light-brown-800: #603711;
  --color-light-brown-900: #44250a;
  --color-light-brown-950: #2b1401;
}

SCSS

$light-brown: #ab6620;
$light-brown-rgb: 171, 102, 32;
$light-brown-light: mix(#fff, $light-brown, 20%);
$light-brown-dark: mix(#000, $light-brown, 20%);

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