Blue Graphite

CSS

:root {
  --blue-graphite: #3a383f;
  --blue-graphite-rgb: 58 56 63;
  --blue-graphite-oklch: oklch(0.345 0.012 298.8);
}

.element {
  color: var(--blue-graphite);
  background-color: hsl(257 6% 23%);
  border-color: oklch(0.345 0.012 298.8);
}

Tailwind CSS v4

@theme {
  --color-blue-graphite: #3a383f;
  --color-blue-graphite-50: #f6f4f8;
  --color-blue-graphite-100: #e8e7eb;
  --color-blue-graphite-200: #d5d3d9;
  --color-blue-graphite-300: #b8b6bd;
  --color-blue-graphite-400: #9f9da5;
  --color-blue-graphite-500: #87848d;
  --color-blue-graphite-600: #727078;
  --color-blue-graphite-700: #5b5a60;
  --color-blue-graphite-800: #434246;
  --color-blue-graphite-900: #2e2d31;
  --color-blue-graphite-950: #1b1a1d;
}

SCSS

$blue-graphite: #3a383f;
$blue-graphite-rgb: 58, 56, 63;
$blue-graphite-light: mix(#fff, $blue-graphite, 20%);
$blue-graphite-dark: mix(#000, $blue-graphite, 20%);

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