#21131F

CSS

:root {
  --shot-in-the-dark: #21131f;
  --shot-in-the-dark-rgb: 33 19 31;
  --shot-in-the-dark-oklch: oklch(0.211 0.032 331.8);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(309 27% 10%);
  border-color: oklch(0.211 0.032 331.8);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #21131f;
  --color-shot-in-the-dark-50: #fbf2f9;
  --color-shot-in-the-dark-100: #efe4ec;
  --color-shot-in-the-dark-200: #ddcfda;
  --color-shot-in-the-dark-300: #c2b2be;
  --color-shot-in-the-dark-400: #aa98a7;
  --color-shot-in-the-dark-500: #937f90;
  --color-shot-in-the-dark-600: #7c6b7a;
  --color-shot-in-the-dark-700: #645661;
  --color-shot-in-the-dark-800: #493f48;
  --color-shot-in-the-dark-900: #332b32;
  --color-shot-in-the-dark-950: #1e181e;
}

SCSS

$shot-in-the-dark: #21131f;
$shot-in-the-dark-rgb: 33, 19, 31;
$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);
}