#756A61

CSS

:root {
  --granite: #756a61;
  --granite-rgb: 117 106 97;
  --granite-oklch: oklch(0.532 0.02 61.7);
}

.element {
  color: var(--granite);
  background-color: hsl(27 9% 42%);
  border-color: oklch(0.532 0.02 61.7);
}

Tailwind CSS v4

@theme {
  --color-granite: #756a61;
  --color-granite-50: #f9f4ef;
  --color-granite-100: #ede7e1;
  --color-granite-200: #dad3cc;
  --color-granite-300: #bfb5ad;
  --color-granite-400: #a79c93;
  --color-granite-500: #908479;
  --color-granite-600: #7a6f67;
  --color-granite-700: #625952;
  --color-granite-800: #48413c;
  --color-granite-900: #322d29;
  --color-granite-950: #1e1a17;
}

SCSS

$granite: #756a61;
$granite-rgb: 117, 106, 97;
$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);
}