Black Green

CSS

:root {
  --black-green: #384e49;
  --black-green-rgb: 56 78 73;
  --black-green-oklch: oklch(0.404 0.028 179.2);
}

.element {
  color: var(--black-green);
  background-color: hsl(166 16% 26%);
  border-color: oklch(0.404 0.028 179.2);
}

Tailwind CSS v4

@theme {
  --color-black-green: #384e49;
  --color-black-green-50: #edf8f5;
  --color-black-green-100: #deebe8;
  --color-black-green-200: #c8d8d5;
  --color-black-green-300: #a8bcb8;
  --color-black-green-400: #8da49f;
  --color-black-green-500: #728d86;
  --color-black-green-600: #617772;
  --color-black-green-700: #4d5f5b;
  --color-black-green-800: #384642;
  --color-black-green-900: #26302e;
  --color-black-green-950: #151c1a;
}

SCSS

$black-green: #384e49;
$black-green-rgb: 56, 78, 73;
$black-green-light: mix(#fff, $black-green, 20%);
$black-green-dark: mix(#000, $black-green, 20%);

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