#A35000

CSS

:root {
  --brandy-bear: #a35000;
  --brandy-bear-rgb: 163 80 0;
  --brandy-bear-oklch: oklch(0.525 0.133 53.3);
}

.element {
  color: var(--brandy-bear);
  background-color: hsl(29 100% 32%);
  border-color: oklch(0.525 0.133 53.3);
}

Tailwind CSS v4

@theme {
  --color-brandy-bear: #a35000;
  --color-brandy-bear-50: #ffecd2;
  --color-brandy-bear-100: #ffddbe;
  --color-brandy-bear-200: #ffc69e;
  --color-brandy-bear-300: #eca574;
  --color-brandy-bear-400: #db874e;
  --color-brandy-bear-500: #c8691c;
  --color-brandy-bear-600: #a9591b;
  --color-brandy-bear-700: #884716;
  --color-brandy-bear-800: #65330f;
  --color-brandy-bear-900: #47230a;
  --color-brandy-bear-950: #2e1100;
}

SCSS

$brandy-bear: #a35000;
$brandy-bear-rgb: 163, 80, 0;
$brandy-bear-light: mix(#fff, $brandy-bear, 20%);
$brandy-bear-dark: mix(#000, $brandy-bear, 20%);

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