#81760E

CSS

:root {
  --olive: #81760e;
  --olive-rgb: 129 118 14;
  --olive-oklch: oklch(0.559 0.113 102.7);
}

.element {
  color: var(--olive);
  background-color: hsl(54 80% 28%);
  border-color: oklch(0.559 0.113 102.7);
}

Tailwind CSS v4

@theme {
  --color-olive: #81760e;
  --color-olive-50: #faf8d3;
  --color-olive-100: #edebbf;
  --color-olive-200: #dbd79f;
  --color-olive-300: #c0bb75;
  --color-olive-400: #aba14c;
  --color-olive-500: #958815;
  --color-olive-600: #7e7317;
  --color-olive-700: #655c12;
  --color-olive-800: #4b4309;
  --color-olive-900: #342e06;
  --color-olive-950: #201b00;
}

SCSS

$olive: #81760e;
$olive-rgb: 129, 118, 14;
$olive-light: mix(#fff, $olive, 20%);
$olive-dark: mix(#000, $olive, 20%);

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