#766A5B

CSS

:root {
  --granite: #766a5b;
  --granite-rgb: 118 106 91;
  --granite-oklch: oklch(0.531 0.027 73.3);
}

.element {
  color: var(--granite);
  background-color: hsl(33 13% 41%);
  border-color: oklch(0.531 0.027 73.3);
}

Tailwind CSS v4

@theme {
  --color-granite: #766a5b;
  --color-granite-50: #faf4ed;
  --color-granite-100: #ede7de;
  --color-granite-200: #dbd3c8;
  --color-granite-300: #c0b6a8;
  --color-granite-400: #a99c8d;
  --color-granite-500: #918473;
  --color-granite-600: #7b7061;
  --color-granite-700: #62594e;
  --color-granite-800: #484138;
  --color-granite-900: #322d26;
  --color-granite-950: #1e1a15;
}

SCSS

$granite: #766a5b;
$granite-rgb: 118, 106, 91;
$granite-light: mix(#fff, $granite, 20%);
$granite-dark: mix(#000, $granite, 20%);

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