#480A23

CSS

:root {
  --what-we-do-in-the-shadows: #480a23;
  --what-we-do-in-the-shadows-rgb: 72 10 35;
  --what-we-do-in-the-shadows-oklch: oklch(0.27 0.094 1.8);
}

.element {
  color: var(--what-we-do-in-the-shadows);
  background-color: hsl(336 76% 16%);
  border-color: oklch(0.27 0.094 1.8);
}

Tailwind CSS v4

@theme {
  --color-what-we-do-in-the-shadows: #480a23;
  --color-what-we-do-in-the-shadows-50: #ffebf2;
  --color-what-we-do-in-the-shadows-100: #ffdce4;
  --color-what-we-do-in-the-shadows-200: #f8c4d0;
  --color-what-we-do-in-the-shadows-300: #e1a4b2;
  --color-what-we-do-in-the-shadows-400: #cd879a;
  --color-what-we-do-in-the-shadows-500: #b96b81;
  --color-what-we-do-in-the-shadows-600: #9c5b6e;
  --color-what-we-do-in-the-shadows-700: #7d4858;
  --color-what-we-do-in-the-shadows-800: #5d3441;
  --color-what-we-do-in-the-shadows-900: #41232d;
  --color-what-we-do-in-the-shadows-950: #29121a;
}

SCSS

$what-we-do-in-the-shadows: #480a23;
$what-we-do-in-the-shadows-rgb: 72, 10, 35;
$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);
}