#22131D

CSS

:root {
  --shot-in-the-dark: #22131d;
  --shot-in-the-dark-rgb: 34 19 29;
  --shot-in-the-dark-oklch: oklch(0.211 0.03 340);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(320 28% 10%);
  border-color: oklch(0.211 0.03 340);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #22131d;
  --color-shot-in-the-dark-50: #fcf2f7;
  --color-shot-in-the-dark-100: #f0e4eb;
  --color-shot-in-the-dark-200: #decfd8;
  --color-shot-in-the-dark-300: #c3b2bc;
  --color-shot-in-the-dark-400: #ab98a4;
  --color-shot-in-the-dark-500: #957f8d;
  --color-shot-in-the-dark-600: #7e6b77;
  --color-shot-in-the-dark-700: #65565f;
  --color-shot-in-the-dark-800: #4a3e46;
  --color-shot-in-the-dark-900: #332b30;
  --color-shot-in-the-dark-950: #1f181d;
}

SCSS

$shot-in-the-dark: #22131d;
$shot-in-the-dark-rgb: 34, 19, 29;
$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);
}