Vulcan Mud

CSS

:root {
  --vulcan-mud: #897f79;
  --vulcan-mud-rgb: 137 127 121;
  --vulcan-mud-oklch: oklch(0.604 0.015 53.2);
}

.element {
  color: var(--vulcan-mud);
  background-color: hsl(23 6% 51%);
  border-color: oklch(0.604 0.015 53.2);
}

Tailwind CSS v4

@theme {
  --color-vulcan-mud: #897f79;
  --color-vulcan-mud-50: #f9f4f1;
  --color-vulcan-mud-100: #ece7e3;
  --color-vulcan-mud-200: #dad3ce;
  --color-vulcan-mud-300: #beb5b0;
  --color-vulcan-mud-400: #a69c96;
  --color-vulcan-mud-500: #8f847d;
  --color-vulcan-mud-600: #796f6a;
  --color-vulcan-mud-700: #615955;
  --color-vulcan-mud-800: #47413e;
  --color-vulcan-mud-900: #312d2a;
  --color-vulcan-mud-950: #1d1a18;
}

SCSS

$vulcan-mud: #897f79;
$vulcan-mud-rgb: 137, 127, 121;
$vulcan-mud-light: mix(#fff, $vulcan-mud, 20%);
$vulcan-mud-dark: mix(#000, $vulcan-mud, 20%);

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