#211224

CSS

:root {
  --shot-in-the-dark: #211224;
  --shot-in-the-dark-rgb: 33 18 36;
  --shot-in-the-dark-oklch: oklch(0.211 0.041 320.8);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(290 33% 11%);
  border-color: oklch(0.211 0.041 320.8);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #211224;
  --color-shot-in-the-dark-50: #fbf1fc;
  --color-shot-in-the-dark-100: #efe4f0;
  --color-shot-in-the-dark-200: #ddcfdf;
  --color-shot-in-the-dark-300: #c2b1c4;
  --color-shot-in-the-dark-400: #aa97ad;
  --color-shot-in-the-dark-500: #937e97;
  --color-shot-in-the-dark-600: #7c6a80;
  --color-shot-in-the-dark-700: #635566;
  --color-shot-in-the-dark-800: #493e4c;
  --color-shot-in-the-dark-900: #322b34;
  --color-shot-in-the-dark-950: #1e1820;
}

SCSS

$shot-in-the-dark: #211224;
$shot-in-the-dark-rgb: 33, 18, 36;
$shot-in-the-dark-light: mix(#fff, $shot-in-the-dark, 20%);
$shot-in-the-dark-dark: mix(#000, $shot-in-the-dark, 20%);

.element {
  color: $shot-in-the-dark;
  box-shadow: 0 0 0 2px rgba($shot-in-the-dark, 0.35);
}