#A0481E

CSS

:root {
  --coco-muck: #a0481e;
  --coco-muck-rgb: 160 72 30;
  --coco-muck-oklch: oklch(0.509 0.129 43.5);
}

.element {
  color: var(--coco-muck);
  background-color: hsl(19 68% 37%);
  border-color: oklch(0.509 0.129 43.5);
}

Tailwind CSS v4

@theme {
  --color-coco-muck: #a0481e;
  --color-coco-muck-50: #ffebd7;
  --color-coco-muck-100: #ffdbc5;
  --color-coco-muck-200: #ffc4a6;
  --color-coco-muck-300: #efa27f;
  --color-coco-muck-400: #dd845e;
  --color-coco-muck-500: #ca6538;
  --color-coco-muck-600: #ab5630;
  --color-coco-muck-700: #894526;
  --color-coco-muck-800: #67311c;
  --color-coco-muck-900: #482112;
  --color-coco-muck-950: #2f1005;
}

SCSS

$coco-muck: #a0481e;
$coco-muck-rgb: 160, 72, 30;
$coco-muck-light: mix(#fff, $coco-muck, 20%);
$coco-muck-dark: mix(#000, $coco-muck, 20%);

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