#004028

CSS

:root {
  --lost-in-the-woods: #004028;
  --lost-in-the-woods-rgb: 0 64 40;
  --lost-in-the-woods-oklch: oklch(0.328 0.073 160.8);
}

.element {
  color: var(--lost-in-the-woods);
  background-color: hsl(158 100% 13%);
  border-color: oklch(0.328 0.073 160.8);
}

Tailwind CSS v4

@theme {
  --color-lost-in-the-woods: #004028;
  --color-lost-in-the-woods-50: #e3fcef;
  --color-lost-in-the-woods-100: #d3f0e1;
  --color-lost-in-the-woods-200: #b9dfcb;
  --color-lost-in-the-woods-300: #96c4ad;
  --color-lost-in-the-woods-400: #77ac90;
  --color-lost-in-the-woods-500: #589576;
  --color-lost-in-the-woods-600: #4b7e64;
  --color-lost-in-the-woods-700: #3b6550;
  --color-lost-in-the-woods-800: #2b4a39;
  --color-lost-in-the-woods-900: #1d3427;
  --color-lost-in-the-woods-950: #0d1f15;
}

SCSS

$lost-in-the-woods: #004028;
$lost-in-the-woods-rgb: 0, 64, 40;
$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);
}