#8E6339

CSS

:root {
  --wild-horses: #8e6339;
  --wild-horses-rgb: 142 99 57;
  --wild-horses-oklch: oklch(0.536 0.08 64);
}

.element {
  color: var(--wild-horses);
  background-color: hsl(30 43% 39%);
  border-color: oklch(0.536 0.08 64);
}

Tailwind CSS v4

@theme {
  --color-wild-horses: #8e6339;
  --color-wild-horses-50: #fff1de;
  --color-wild-horses-100: #fbe3cc;
  --color-wild-horses-200: #edceb1;
  --color-wild-horses-300: #d4b08c;
  --color-wild-horses-400: #c0956c;
  --color-wild-horses-500: #ab7a4b;
  --color-wild-horses-600: #916840;
  --color-wild-horses-700: #745333;
  --color-wild-horses-800: #563c24;
  --color-wild-horses-900: #3c2918;
  --color-wild-horses-950: #261709;
}

SCSS

$wild-horses: #8e6339;
$wild-horses-rgb: 142, 99, 57;
$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);
}