#1E2026

CSS

:root {
  --noble-black: #1e2026;
  --noble-black-rgb: 30 32 38;
  --noble-black-oklch: oklch(0.244 0.012 270.9);
}

.element {
  color: var(--noble-black);
  background-color: hsl(225 12% 13%);
  border-color: oklch(0.244 0.012 270.9);
}

Tailwind CSS v4

@theme {
  --color-noble-black: #1e2026;
  --color-noble-black-50: #f4f5f9;
  --color-noble-black-100: #e6e8ec;
  --color-noble-black-200: #d2d4d9;
  --color-noble-black-300: #b5b7be;
  --color-noble-black-400: #9c9ea6;
  --color-noble-black-500: #83868e;
  --color-noble-black-600: #6f7178;
  --color-noble-black-700: #595b60;
  --color-noble-black-800: #414247;
  --color-noble-black-900: #2c2e31;
  --color-noble-black-950: #1a1b1d;
}

SCSS

$noble-black: #1e2026;
$noble-black-rgb: 30, 32, 38;
$noble-black-light: mix(#fff, $noble-black, 20%);
$noble-black-dark: mix(#000, $noble-black, 20%);

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