#003D25

CSS

:root {
  --lost-in-the-woods: #003d25;
  --lost-in-the-woods-rgb: 0 61 37;
  --lost-in-the-woods-oklch: oklch(0.318 0.072 159.8);
}

.element {
  color: var(--lost-in-the-woods);
  background-color: hsl(156 100% 12%);
  border-color: oklch(0.318 0.072 159.8);
}

Tailwind CSS v4

@theme {
  --color-lost-in-the-woods: #003d25;
  --color-lost-in-the-woods-50: #e4fcef;
  --color-lost-in-the-woods-100: #d4f0e1;
  --color-lost-in-the-woods-200: #badecb;
  --color-lost-in-the-woods-300: #97c3ac;
  --color-lost-in-the-woods-400: #79ac90;
  --color-lost-in-the-woods-500: #599576;
  --color-lost-in-the-woods-600: #4c7e64;
  --color-lost-in-the-woods-700: #3d6550;
  --color-lost-in-the-woods-800: #2c4a39;
  --color-lost-in-the-woods-900: #1e3327;
  --color-lost-in-the-woods-950: #0d1f15;
}

SCSS

$lost-in-the-woods: #003d25;
$lost-in-the-woods-rgb: 0, 61, 37;
$lost-in-the-woods-light: mix(#fff, $lost-in-the-woods, 20%);
$lost-in-the-woods-dark: mix(#000, $lost-in-the-woods, 20%);

.element {
  color: $lost-in-the-woods;
  box-shadow: 0 0 0 2px rgba($lost-in-the-woods, 0.35);
}