#3C2280

CSS

:root {
  --explorer-of-the-galaxies: #3c2280;
  --explorer-of-the-galaxies-rgb: 60 34 128;
  --explorer-of-the-galaxies-oklch: oklch(0.348 0.148 289);
}

.element {
  color: var(--explorer-of-the-galaxies);
  background-color: hsl(257 58% 32%);
  border-color: oklch(0.348 0.148 289);
}

Tailwind CSS v4

@theme {
  --color-explorer-of-the-galaxies: #3c2280;
  --color-explorer-of-the-galaxies-50: #f4efff;
  --color-explorer-of-the-galaxies-100: #e7e0ff;
  --color-explorer-of-the-galaxies-200: #d4caff;
  --color-explorer-of-the-galaxies-300: #b8aafd;
  --color-explorer-of-the-galaxies-400: #9c8ef0;
  --color-explorer-of-the-galaxies-500: #8571e1;
  --color-explorer-of-the-galaxies-600: #7160bd;
  --color-explorer-of-the-galaxies-700: #5a4d98;
  --color-explorer-of-the-galaxies-800: #403872;
  --color-explorer-of-the-galaxies-900: #2c2751;
  --color-explorer-of-the-galaxies-950: #191436;
}

SCSS

$explorer-of-the-galaxies: #3c2280;
$explorer-of-the-galaxies-rgb: 60, 34, 128;
$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);
}