#222520

CSS

:root {
  --bitter-liquorice: #222520;
  --bitter-liquorice-rgb: 34 37 32;
  --bitter-liquorice-oklch: oklch(0.26 0.01 132.7);
}

.element {
  color: var(--bitter-liquorice);
  background-color: hsl(96 7% 14%);
  border-color: oklch(0.26 0.01 132.7);
}

Tailwind CSS v4

@theme {
  --color-bitter-liquorice: #222520;
  --color-bitter-liquorice-50: #f4f6f3;
  --color-bitter-liquorice-100: #e6e9e5;
  --color-bitter-liquorice-200: #d2d5d1;
  --color-bitter-liquorice-300: #b5b9b3;
  --color-bitter-liquorice-400: #9ca09a;
  --color-bitter-liquorice-500: #848881;
  --color-bitter-liquorice-600: #6f736d;
  --color-bitter-liquorice-700: #595c57;
  --color-bitter-liquorice-800: #41433f;
  --color-bitter-liquorice-900: #2d2e2c;
  --color-bitter-liquorice-950: #1a1b19;
}

SCSS

$bitter-liquorice: #222520;
$bitter-liquorice-rgb: 34, 37, 32;
$bitter-liquorice-light: mix(#fff, $bitter-liquorice, 20%);
$bitter-liquorice-dark: mix(#000, $bitter-liquorice, 20%);

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