#756B5B

CSS

:root {
  --granite: #756b5b;
  --granite-rgb: 117 107 91;
  --granite-oklch: oklch(0.532 0.027 79.6);
}

.element {
  color: var(--granite);
  background-color: hsl(37 12% 41%);
  border-color: oklch(0.532 0.027 79.6);
}

Tailwind CSS v4

@theme {
  --color-granite: #756b5b;
  --color-granite-50: #f9f4ed;
  --color-granite-100: #ece7de;
  --color-granite-200: #dad3c8;
  --color-granite-300: #beb6a8;
  --color-granite-400: #a79d8d;
  --color-granite-500: #908472;
  --color-granite-600: #7a7061;
  --color-granite-700: #615a4d;
  --color-granite-800: #484138;
  --color-granite-900: #322d26;
  --color-granite-950: #1e1a15;
}

SCSS

$granite: #756b5b;
$granite-rgb: 117, 107, 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);
}