#0D1A15

CSS

:root {
  --jedi-night: #0d1a15;
  --jedi-night-rgb: 13 26 21;
  --jedi-night-oklch: oklch(0.204 0.021 168.1);
}

.element {
  color: var(--jedi-night);
  background-color: hsl(157 33% 8%);
  border-color: oklch(0.204 0.021 168.1);
}

Tailwind CSS v4

@theme {
  --color-jedi-night: #0d1a15;
  --color-jedi-night-50: #f0f7f4;
  --color-jedi-night-100: #e1eae7;
  --color-jedi-night-200: #ccd7d3;
  --color-jedi-night-300: #adbbb6;
  --color-jedi-night-400: #93a39c;
  --color-jedi-night-500: #798b83;
  --color-jedi-night-600: #67766f;
  --color-jedi-night-700: #525e59;
  --color-jedi-night-800: #3c4541;
  --color-jedi-night-900: #29302d;
  --color-jedi-night-950: #171c1a;
}

SCSS

$jedi-night: #0d1a15;
$jedi-night-rgb: 13, 26, 21;
$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);
}