#1B1023

CSS

:root {
  --shot-in-the-dark: #1b1023;
  --shot-in-the-dark-rgb: 27 16 35;
  --shot-in-the-dark-oklch: oklch(0.198 0.04 309.8);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(275 37% 10%);
  border-color: oklch(0.198 0.04 309.8);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #1b1023;
  --color-shot-in-the-dark-50: #f9f2fe;
  --color-shot-in-the-dark-100: #ece4f2;
  --color-shot-in-the-dark-200: #dad0e1;
  --color-shot-in-the-dark-300: #beb2c7;
  --color-shot-in-the-dark-400: #a698b1;
  --color-shot-in-the-dark-500: #8e7f9b;
  --color-shot-in-the-dark-600: #786c83;
  --color-shot-in-the-dark-700: #605669;
  --color-shot-in-the-dark-800: #463f4d;
  --color-shot-in-the-dark-900: #312b36;
  --color-shot-in-the-dark-950: #1d1921;
}

SCSS

$shot-in-the-dark: #1b1023;
$shot-in-the-dark-rgb: 27, 16, 35;
$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);
}