#103D00

CSS

:root {
  --woodland-grass: #103d00;
  --woodland-grass-rgb: 16 61 0;
  --woodland-grass-oklch: oklch(0.316 0.1 139.2);
}

.element {
  color: var(--woodland-grass);
  background-color: hsl(104 100% 12%);
  border-color: oklch(0.316 0.1 139.2);
}

Tailwind CSS v4

@theme {
  --color-woodland-grass: #103d00;
  --color-woodland-grass-50: #e6fde2;
  --color-woodland-grass-100: #d6f1d2;
  --color-woodland-grass-200: #bde0b8;
  --color-woodland-grass-300: #9bc595;
  --color-woodland-grass-400: #80ad73;
  --color-woodland-grass-500: #629654;
  --color-woodland-grass-600: #547f48;
  --color-woodland-grass-700: #436639;
  --color-woodland-grass-800: #314a27;
  --color-woodland-grass-900: #21341a;
  --color-woodland-grass-950: #111f0b;
}

SCSS

$woodland-grass: #103d00;
$woodland-grass-rgb: 16, 61, 0;
$woodland-grass-light: mix(#fff, $woodland-grass, 20%);
$woodland-grass-dark: mix(#000, $woodland-grass, 20%);

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