#004729

CSS

:root {
  --lost-in-the-woods: #004729;
  --lost-in-the-woods-rgb: 0 71 41;
  --lost-in-the-woods-oklch: oklch(0.35 0.083 157.6);
}

.element {
  color: var(--lost-in-the-woods);
  background-color: hsl(155 100% 14%);
  border-color: oklch(0.35 0.083 157.6);
}

Tailwind CSS v4

@theme {
  --color-lost-in-the-woods: #004729;
  --color-lost-in-the-woods-50: #e2fded;
  --color-lost-in-the-woods-100: #d1f1de;
  --color-lost-in-the-woods-200: #b7e0c8;
  --color-lost-in-the-woods-300: #93c5a9;
  --color-lost-in-the-woods-400: #74ae8b;
  --color-lost-in-the-woods-500: #539771;
  --color-lost-in-the-woods-600: #478060;
  --color-lost-in-the-woods-700: #39664c;
  --color-lost-in-the-woods-800: #294b36;
  --color-lost-in-the-woods-900: #1c3425;
  --color-lost-in-the-woods-950: #0c1f13;
}

SCSS

$lost-in-the-woods: #004729;
$lost-in-the-woods-rgb: 0, 71, 41;
$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);
}