#2D2416

CSS

:root {
  --go-to-hell-black: #2d2416;
  --go-to-hell-black-rgb: 45 36 22;
  --go-to-hell-black-oklch: oklch(0.266 0.028 78.2);
}

.element {
  color: var(--go-to-hell-black);
  background-color: hsl(37 34% 13%);
  border-color: oklch(0.266 0.028 78.2);
}

Tailwind CSS v4

@theme {
  --color-go-to-hell-black: #2d2416;
  --color-go-to-hell-black-50: #f9f4ed;
  --color-go-to-hell-black-100: #ede7de;
  --color-go-to-hell-black-200: #dad3c7;
  --color-go-to-hell-black-300: #bfb6a8;
  --color-go-to-hell-black-400: #a89d8d;
  --color-go-to-hell-black-500: #908472;
  --color-go-to-hell-black-600: #7a7061;
  --color-go-to-hell-black-700: #625a4d;
  --color-go-to-hell-black-800: #484138;
  --color-go-to-hell-black-900: #322d26;
  --color-go-to-hell-black-950: #1e1a15;
}

SCSS

$go-to-hell-black: #2d2416;
$go-to-hell-black-rgb: 45, 36, 22;
$go-to-hell-black-light: mix(#fff, $go-to-hell-black, 20%);
$go-to-hell-black-dark: mix(#000, $go-to-hell-black, 20%);

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