#1E1421

CSS

:root {
  --shot-in-the-dark: #1e1421;
  --shot-in-the-dark-rgb: 30 20 33;
  --shot-in-the-dark-oklch: oklch(0.21 0.029 318.3);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(286 25% 10%);
  border-color: oklch(0.21 0.029 318.3);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #1e1421;
  --color-shot-in-the-dark-50: #f9f3fa;
  --color-shot-in-the-dark-100: #ece5ee;
  --color-shot-in-the-dark-200: #dad0dc;
  --color-shot-in-the-dark-300: #beb3c1;
  --color-shot-in-the-dark-400: #a699aa;
  --color-shot-in-the-dark-500: #8f8093;
  --color-shot-in-the-dark-600: #796d7c;
  --color-shot-in-the-dark-700: #615763;
  --color-shot-in-the-dark-800: #463f49;
  --color-shot-in-the-dark-900: #312c33;
  --color-shot-in-the-dark-950: #1d191f;
}

SCSS

$shot-in-the-dark: #1e1421;
$shot-in-the-dark-rgb: 30, 20, 33;
$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);
}