#004326

CSS

:root {
  --lost-in-the-woods: #004326;
  --lost-in-the-woods-rgb: 0 67 38;
  --lost-in-the-woods-oklch: oklch(0.337 0.08 157.3);
}

.element {
  color: var(--lost-in-the-woods);
  background-color: hsl(154 100% 13%);
  border-color: oklch(0.337 0.08 157.3);
}

Tailwind CSS v4

@theme {
  --color-lost-in-the-woods: #004326;
  --color-lost-in-the-woods-50: #e3fded;
  --color-lost-in-the-woods-100: #d2f1de;
  --color-lost-in-the-woods-200: #b8dfc8;
  --color-lost-in-the-woods-300: #95c4a9;
  --color-lost-in-the-woods-400: #76ad8c;
  --color-lost-in-the-woods-500: #569671;
  --color-lost-in-the-woods-600: #497f60;
  --color-lost-in-the-woods-700: #3a664d;
  --color-lost-in-the-woods-800: #2a4b36;
  --color-lost-in-the-woods-900: #1d3425;
  --color-lost-in-the-woods-950: #0c1f14;
}

SCSS

$lost-in-the-woods: #004326;
$lost-in-the-woods-rgb: 0, 67, 38;
$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);
}