Black Forest Green

CSS

:root {
  --black-forest-green: #424740;
  --black-forest-green-rgb: 66 71 64;
  --black-forest-green-oklch: oklch(0.391 0.013 136.6);
}

.element {
  color: var(--black-forest-green);
  background-color: hsl(103 5% 26%);
  border-color: oklch(0.391 0.013 136.6);
}

Tailwind CSS v4

@theme {
  --color-black-forest-green: #424740;
  --color-black-forest-green-50: #f3f6f2;
  --color-black-forest-green-100: #e6e9e5;
  --color-black-forest-green-200: #d1d6d0;
  --color-black-forest-green-300: #b4b9b3;
  --color-black-forest-green-400: #9ba099;
  --color-black-forest-green-500: #828880;
  --color-black-forest-green-600: #6e736c;
  --color-black-forest-green-700: #585c56;
  --color-black-forest-green-800: #40433f;
  --color-black-forest-green-900: #2c2f2b;
  --color-black-forest-green-950: #191b19;
}

SCSS

$black-forest-green: #424740;
$black-forest-green-rgb: 66, 71, 64;
$black-forest-green-light: mix(#fff, $black-forest-green, 20%);
$black-forest-green-dark: mix(#000, $black-forest-green, 20%);

.element {
  color: $black-forest-green;
  box-shadow: 0 0 0 2px rgba($black-forest-green, 0.35);
}