#8C6440

CSS

:root {
  --wild-horses: #8c6440;
  --wild-horses-rgb: 140 100 64;
  --wild-horses-oklch: oklch(0.536 0.073 62.3);
}

.element {
  color: var(--wild-horses);
  background-color: hsl(28 37% 40%);
  border-color: oklch(0.536 0.073 62.3);
}

Tailwind CSS v4

@theme {
  --color-wild-horses: #8c6440;
  --color-wild-horses-50: #fff1e0;
  --color-wild-horses-100: #fae3cf;
  --color-wild-horses-200: #ebceb5;
  --color-wild-horses-300: #d2b091;
  --color-wild-horses-400: #be9572;
  --color-wild-horses-500: #a97b53;
  --color-wild-horses-600: #8f6946;
  --color-wild-horses-700: #725338;
  --color-wild-horses-800: #553c28;
  --color-wild-horses-900: #3b291b;
  --color-wild-horses-950: #25170b;
}

SCSS

$wild-horses: #8c6440;
$wild-horses-rgb: 140, 100, 64;
$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);
}