#B8B475

CSS

:root {
  --savannah-grass: #b8b475;
  --savannah-grass-rgb: 184 180 117;
  --savannah-grass-oklch: oklch(0.758 0.083 105.1);
}

.element {
  color: var(--savannah-grass);
  background-color: hsl(56 32% 59%);
  border-color: oklch(0.758 0.083 105.1);
}

Tailwind CSS v4

@theme {
  --color-savannah-grass: #b8b475;
  --color-savannah-grass-50: #f7f7dc;
  --color-savannah-grass-100: #eaeacb;
  --color-savannah-grass-200: #d8d7af;
  --color-savannah-grass-300: #bcbb89;
  --color-savannah-grass-400: #a5a267;
  --color-savannah-grass-500: #8e8944;
  --color-savannah-grass-600: #78743a;
  --color-savannah-grass-700: #605d2e;
  --color-savannah-grass-800: #484420;
  --color-savannah-grass-900: #322f15;
  --color-savannah-grass-950: #1e1b06;
}

SCSS

$savannah-grass: #b8b475;
$savannah-grass-rgb: 184, 180, 117;
$savannah-grass-light: mix(#fff, $savannah-grass, 20%);
$savannah-grass-dark: mix(#000, $savannah-grass, 20%);

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