#020901

CSS

:root {
  --jedi-night: #020901;
  --jedi-night-rgb: 2 9 1;
  --jedi-night-oklch: oklch(0.125 0.032 139.4);
}

.element {
  color: var(--jedi-night);
  background-color: hsl(113 80% 2%);
  border-color: oklch(0.125 0.032 139.4);
}

Tailwind CSS v4

@theme {
  --color-jedi-night: #020901;
  --color-jedi-night-50: #f0f8ef;
  --color-jedi-night-100: #e2ebe1;
  --color-jedi-night-200: #cdd8cb;
  --color-jedi-night-300: #afbcad;
  --color-jedi-night-400: #95a391;
  --color-jedi-night-500: #7c8c77;
  --color-jedi-night-600: #697665;
  --color-jedi-night-700: #545f51;
  --color-jedi-night-800: #3d453a;
  --color-jedi-night-900: #2a3028;
  --color-jedi-night-950: #181c16;
}

SCSS

$jedi-night: #020901;
$jedi-night-rgb: 2, 9, 1;
$jedi-night-light: mix(#fff, $jedi-night, 20%);
$jedi-night-dark: mix(#000, $jedi-night, 20%);

.element {
  color: $jedi-night;
  box-shadow: 0 0 0 2px rgba($jedi-night, 0.35);
}