#876647

CSS

:root {
  --wild-horses: #876647;
  --wild-horses-rgb: 135 102 71;
  --wild-horses-oklch: oklch(0.536 0.062 64.1);
}

.element {
  color: var(--wild-horses);
  background-color: hsl(29 31% 40%);
  border-color: oklch(0.536 0.062 64.1);
}

Tailwind CSS v4

@theme {
  --color-wild-horses: #876647;
  --color-wild-horses-50: #fff2e3;
  --color-wild-horses-100: #f7e4d3;
  --color-wild-horses-200: #e7d0b9;
  --color-wild-horses-300: #ceb297;
  --color-wild-horses-400: #b99778;
  --color-wild-horses-500: #a37e5b;
  --color-wild-horses-600: #8a6a4d;
  --color-wild-horses-700: #6f553d;
  --color-wild-horses-800: #523e2c;
  --color-wild-horses-900: #392a1e;
  --color-wild-horses-950: #23180e;
}

SCSS

$wild-horses: #876647;
$wild-horses-rgb: 135, 102, 71;
$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);
}