#451624

CSS

:root {
  --what-we-do-in-the-shadows: #451624;
  --what-we-do-in-the-shadows-rgb: 69 22 36;
  --what-we-do-in-the-shadows-oklch: oklch(0.279 0.074 4.7);
}

.element {
  color: var(--what-we-do-in-the-shadows);
  background-color: hsl(342 52% 18%);
  border-color: oklch(0.279 0.074 4.7);
}

Tailwind CSS v4

@theme {
  --color-what-we-do-in-the-shadows: #451624;
  --color-what-we-do-in-the-shadows-50: #ffedf1;
  --color-what-we-do-in-the-shadows-100: #ffdee4;
  --color-what-we-do-in-the-shadows-200: #f1c8cf;
  --color-what-we-do-in-the-shadows-300: #daa8b1;
  --color-what-we-do-in-the-shadows-400: #c58c99;
  --color-what-we-do-in-the-shadows-500: #b07180;
  --color-what-we-do-in-the-shadows-600: #95606c;
  --color-what-we-do-in-the-shadows-700: #774d56;
  --color-what-we-do-in-the-shadows-800: #583840;
  --color-what-we-do-in-the-shadows-900: #3e262c;
  --color-what-we-do-in-the-shadows-950: #271419;
}

SCSS

$what-we-do-in-the-shadows: #451624;
$what-we-do-in-the-shadows-rgb: 69, 22, 36;
$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);
}