#1E1329

CSS

:root {
  --shot-in-the-dark: #1e1329;
  --shot-in-the-dark-rgb: 30 19 41;
  --shot-in-the-dark-oklch: oklch(0.213 0.044 306);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(270 37% 12%);
  border-color: oklch(0.213 0.044 306);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #1e1329;
  --color-shot-in-the-dark-50: #f9f2ff;
  --color-shot-in-the-dark-100: #ece4f4;
  --color-shot-in-the-dark-200: #d9d0e3;
  --color-shot-in-the-dark-300: #beb2c9;
  --color-shot-in-the-dark-400: #a598b4;
  --color-shot-in-the-dark-500: #8d7f9e;
  --color-shot-in-the-dark-600: #786b86;
  --color-shot-in-the-dark-700: #60566b;
  --color-shot-in-the-dark-800: #463f4f;
  --color-shot-in-the-dark-900: #302b37;
  --color-shot-in-the-dark-950: #1c1822;
}

SCSS

$shot-in-the-dark: #1e1329;
$shot-in-the-dark-rgb: 30, 19, 41;
$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);
}