Beyond the Stars

CSS

:root {
  --beyond-the-stars: #0a3251;
  --beyond-the-stars-rgb: 10 50 81;
  --beyond-the-stars-oklch: oklch(0.308 0.071 246.7);
}

.element {
  color: var(--beyond-the-stars);
  background-color: hsl(206 78% 18%);
  border-color: oklch(0.308 0.071 246.7);
}

Tailwind CSS v4

@theme {
  --color-beyond-the-stars: #0a3251;
  --color-beyond-the-stars-50: #e6f7ff;
  --color-beyond-the-stars-100: #d6ebff;
  --color-beyond-the-stars-200: #bed7f2;
  --color-beyond-the-stars-300: #9cbbdb;
  --color-beyond-the-stars-400: #7da3c6;
  --color-beyond-the-stars-500: #5f8bb3;
  --color-beyond-the-stars-600: #517597;
  --color-beyond-the-stars-700: #405e79;
  --color-beyond-the-stars-800: #2d4559;
  --color-beyond-the-stars-900: #1e303e;
  --color-beyond-the-stars-950: #0e1c28;
}

SCSS

$beyond-the-stars: #0a3251;
$beyond-the-stars-rgb: 10, 50, 81;
$beyond-the-stars-light: mix(#fff, $beyond-the-stars, 20%);
$beyond-the-stars-dark: mix(#000, $beyond-the-stars, 20%);

.element {
  color: $beyond-the-stars;
  box-shadow: 0 0 0 2px rgba($beyond-the-stars, 0.35);
}