#084000

CSS

:root {
  --woodland-grass: #084000;
  --woodland-grass-rgb: 8 64 0;
  --woodland-grass-oklch: oklch(0.324 0.107 141.1);
}

.element {
  color: var(--woodland-grass);
  background-color: hsl(113 100% 13%);
  border-color: oklch(0.324 0.107 141.1);
}

Tailwind CSS v4

@theme {
  --color-woodland-grass: #084000;
  --color-woodland-grass-50: #e4fee2;
  --color-woodland-grass-100: #d4f2d1;
  --color-woodland-grass-200: #bae1b7;
  --color-woodland-grass-300: #97c694;
  --color-woodland-grass-400: #7bae72;
  --color-woodland-grass-500: #5c9753;
  --color-woodland-grass-600: #4e8047;
  --color-woodland-grass-700: #3e6738;
  --color-woodland-grass-800: #2e4b26;
  --color-woodland-grass-900: #1f3419;
  --color-woodland-grass-950: #0f1f0a;
}

SCSS

$woodland-grass: #084000;
$woodland-grass-rgb: 8, 64, 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);
}