#180C25

CSS

:root {
  --shot-in-the-dark: #180c25;
  --shot-in-the-dark-rgb: 24 12 37;
  --shot-in-the-dark-oklch: oklch(0.186 0.051 304.1);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(269 51% 10%);
  border-color: oklch(0.186 0.051 304.1);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #180c25;
  --color-shot-in-the-dark-50: #f9f2ff;
  --color-shot-in-the-dark-100: #ece4f6;
  --color-shot-in-the-dark-200: #d9cfe6;
  --color-shot-in-the-dark-300: #beb1cd;
  --color-shot-in-the-dark-400: #a597b7;
  --color-shot-in-the-dark-500: #8d7ea2;
  --color-shot-in-the-dark-600: #786b89;
  --color-shot-in-the-dark-700: #60556e;
  --color-shot-in-the-dark-800: #453e51;
  --color-shot-in-the-dark-900: #302b39;
  --color-shot-in-the-dark-950: #1c1823;
}

SCSS

$shot-in-the-dark: #180c25;
$shot-in-the-dark-rgb: 24, 12, 37;
$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);
}