#8B6445

CSS

:root {
  --wild-horses: #8b6445;
  --wild-horses-rgb: 139 100 69;
  --wild-horses-oklch: oklch(0.536 0.067 59.2);
}

.element {
  color: var(--wild-horses);
  background-color: hsl(27 34% 41%);
  border-color: oklch(0.536 0.067 59.2);
}

Tailwind CSS v4

@theme {
  --color-wild-horses: #8b6445;
  --color-wild-horses-50: #fff1e2;
  --color-wild-horses-100: #f9e3d2;
  --color-wild-horses-200: #eaceb8;
  --color-wild-horses-300: #d2b095;
  --color-wild-horses-400: #bd9577;
  --color-wild-horses-500: #a87b58;
  --color-wild-horses-600: #8e694b;
  --color-wild-horses-700: #72543c;
  --color-wild-horses-800: #543c2b;
  --color-wild-horses-900: #3b2a1d;
  --color-wild-horses-950: #25170d;
}

SCSS

$wild-horses: #8b6445;
$wild-horses-rgb: 139, 100, 69;
$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);
}