#350317

CSS

:root {
  --what-we-do-in-the-shadows: #350317;
  --what-we-do-in-the-shadows-rgb: 53 3 23;
  --what-we-do-in-the-shadows-oklch: oklch(0.217 0.081 2);
}

.element {
  color: var(--what-we-do-in-the-shadows);
  background-color: hsl(336 89% 11%);
  border-color: oklch(0.217 0.081 2);
}

Tailwind CSS v4

@theme {
  --color-what-we-do-in-the-shadows: #350317;
  --color-what-we-do-in-the-shadows-50: #ffecf2;
  --color-what-we-do-in-the-shadows-100: #ffdde5;
  --color-what-we-do-in-the-shadows-200: #f4c7d0;
  --color-what-we-do-in-the-shadows-300: #dca7b2;
  --color-what-we-do-in-the-shadows-400: #c78b9b;
  --color-what-we-do-in-the-shadows-500: #b36f82;
  --color-what-we-do-in-the-shadows-600: #975e6e;
  --color-what-we-do-in-the-shadows-700: #794b58;
  --color-what-we-do-in-the-shadows-800: #593641;
  --color-what-we-do-in-the-shadows-900: #3f252d;
  --color-what-we-do-in-the-shadows-950: #28141a;
}

SCSS

$what-we-do-in-the-shadows: #350317;
$what-we-do-in-the-shadows-rgb: 53, 3, 23;
$what-we-do-in-the-shadows-light: mix(#fff, $what-we-do-in-the-shadows, 20%);
$what-we-do-in-the-shadows-dark: mix(#000, $what-we-do-in-the-shadows, 20%);

.element {
  color: $what-we-do-in-the-shadows;
  box-shadow: 0 0 0 2px rgba($what-we-do-in-the-shadows, 0.35);
}