To Hell and Black

CSS

:root {
  --to-hell-and-black: #25212a;
  --to-hell-and-black-rgb: 37 33 42;
  --to-hell-and-black-oklch: oklch(0.256 0.018 305.3);
}

.element {
  color: var(--to-hell-and-black);
  background-color: hsl(267 12% 15%);
  border-color: oklch(0.256 0.018 305.3);
}

Tailwind CSS v4

@theme {
  --color-to-hell-and-black: #25212a;
  --color-to-hell-and-black-50: #f6f4f9;
  --color-to-hell-and-black-100: #e9e6ed;
  --color-to-hell-and-black-200: #d6d2da;
  --color-to-hell-and-black-300: #bab5bf;
  --color-to-hell-and-black-400: #a19ca7;
  --color-to-hell-and-black-500: #898390;
  --color-to-hell-and-black-600: #746f7a;
  --color-to-hell-and-black-700: #5d5961;
  --color-to-hell-and-black-800: #434147;
  --color-to-hell-and-black-900: #2f2d32;
  --color-to-hell-and-black-950: #1b1a1d;
}

SCSS

$to-hell-and-black: #25212a;
$to-hell-and-black-rgb: 37, 33, 42;
$to-hell-and-black-light: mix(#fff, $to-hell-and-black, 20%);
$to-hell-and-black-dark: mix(#000, $to-hell-and-black, 20%);

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