#341A6E

CSS

:root {
  --explorer-of-the-galaxies: #341a6e;
  --explorer-of-the-galaxies-rgb: 52 26 110;
  --explorer-of-the-galaxies-oklch: oklch(0.311 0.135 290.5);
}

.element {
  color: var(--explorer-of-the-galaxies);
  background-color: hsl(259 62% 27%);
  border-color: oklch(0.311 0.135 290.5);
}

Tailwind CSS v4

@theme {
  --color-explorer-of-the-galaxies: #341a6e;
  --color-explorer-of-the-galaxies-50: #f6efff;
  --color-explorer-of-the-galaxies-100: #e8e0ff;
  --color-explorer-of-the-galaxies-200: #d5caff;
  --color-explorer-of-the-galaxies-300: #b9abf7;
  --color-explorer-of-the-galaxies-400: #9e8fe8;
  --color-explorer-of-the-galaxies-500: #8773d8;
  --color-explorer-of-the-galaxies-600: #7262b6;
  --color-explorer-of-the-galaxies-700: #5b4e92;
  --color-explorer-of-the-galaxies-800: #41396e;
  --color-explorer-of-the-galaxies-900: #2d274d;
  --color-explorer-of-the-galaxies-950: #1a1533;
}

SCSS

$explorer-of-the-galaxies: #341a6e;
$explorer-of-the-galaxies-rgb: 52, 26, 110;
$explorer-of-the-galaxies-light: mix(#fff, $explorer-of-the-galaxies, 20%);
$explorer-of-the-galaxies-dark: mix(#000, $explorer-of-the-galaxies, 20%);

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