#21162B

CSS

:root {
  --shot-in-the-dark: #21162b;
  --shot-in-the-dark-rgb: 33 22 43;
  --shot-in-the-dark-oklch: oklch(0.225 0.042 307.4);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(271 32% 13%);
  border-color: oklch(0.225 0.042 307.4);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #21162b;
  --color-shot-in-the-dark-50: #f9f2ff;
  --color-shot-in-the-dark-100: #ece4f3;
  --color-shot-in-the-dark-200: #dad0e2;
  --color-shot-in-the-dark-300: #beb2c8;
  --color-shot-in-the-dark-400: #a598b2;
  --color-shot-in-the-dark-500: #8e7f9c;
  --color-shot-in-the-dark-600: #786c84;
  --color-shot-in-the-dark-700: #60566a;
  --color-shot-in-the-dark-800: #463f4e;
  --color-shot-in-the-dark-900: #302b36;
  --color-shot-in-the-dark-950: #1d1921;
}

SCSS

$shot-in-the-dark: #21162b;
$shot-in-the-dark-rgb: 33, 22, 43;
$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);
}