#201428

CSS

:root {
  --shot-in-the-dark: #201428;
  --shot-in-the-dark-rgb: 32 20 40;
  --shot-in-the-dark-oklch: oklch(0.217 0.042 310.9);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(276 33% 12%);
  border-color: oklch(0.217 0.042 310.9);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #201428;
  --color-shot-in-the-dark-50: #f9f2fe;
  --color-shot-in-the-dark-100: #ede4f2;
  --color-shot-in-the-dark-200: #dacfe1;
  --color-shot-in-the-dark-300: #bfb2c7;
  --color-shot-in-the-dark-400: #a698b1;
  --color-shot-in-the-dark-500: #8f7f9b;
  --color-shot-in-the-dark-600: #796b83;
  --color-shot-in-the-dark-700: #615669;
  --color-shot-in-the-dark-800: #463f4e;
  --color-shot-in-the-dark-900: #312b36;
  --color-shot-in-the-dark-950: #1d1821;
}

SCSS

$shot-in-the-dark: #201428;
$shot-in-the-dark-rgb: 32, 20, 40;
$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);
}