#030C03

CSS

:root {
  --jedi-night: #030c03;
  --jedi-night-rgb: 3 12 3;
  --jedi-night-oklch: oklch(0.139 0.029 143.8);
}

.element {
  color: var(--jedi-night);
  background-color: hsl(120 60% 3%);
  border-color: oklch(0.139 0.029 143.8);
}

Tailwind CSS v4

@theme {
  --color-jedi-night: #030c03;
  --color-jedi-night-50: #f0f8f0;
  --color-jedi-night-100: #e2ebe2;
  --color-jedi-night-200: #cdd8cd;
  --color-jedi-night-300: #aebcaf;
  --color-jedi-night-400: #94a394;
  --color-jedi-night-500: #7b8c7a;
  --color-jedi-night-600: #687667;
  --color-jedi-night-700: #535e53;
  --color-jedi-night-800: #3d453c;
  --color-jedi-night-900: #2a3029;
  --color-jedi-night-950: #171c17;
}

SCSS

$jedi-night: #030c03;
$jedi-night-rgb: 3, 12, 3;
$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);
}