#866649

CSS

:root {
  --wild-horses: #866649;
  --wild-horses-rgb: 134 102 73;
  --wild-horses-oklch: oklch(0.535 0.059 63.2);
}

.element {
  color: var(--wild-horses);
  background-color: hsl(29 29% 41%);
  border-color: oklch(0.535 0.059 63.2);
}

Tailwind CSS v4

@theme {
  --color-wild-horses: #866649;
  --color-wild-horses-50: #fff2e4;
  --color-wild-horses-100: #f6e4d4;
  --color-wild-horses-200: #e7d0bb;
  --color-wild-horses-300: #cdb298;
  --color-wild-horses-400: #b8977b;
  --color-wild-horses-500: #a27e5d;
  --color-wild-horses-600: #896b4f;
  --color-wild-horses-700: #6e553f;
  --color-wild-horses-800: #523e2d;
  --color-wild-horses-900: #392b1f;
  --color-wild-horses-950: #23180e;
}

SCSS

$wild-horses: #866649;
$wild-horses-rgb: 134, 102, 73;
$wild-horses-light: mix(#fff, $wild-horses, 20%);
$wild-horses-dark: mix(#000, $wild-horses, 20%);

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