#A65800

CSS

:root {
  --brandy-bear: #a65800;
  --brandy-bear-rgb: 166 88 0;
  --brandy-bear-oklch: oklch(0.542 0.13 57.6);
}

.element {
  color: var(--brandy-bear);
  background-color: hsl(32 100% 33%);
  border-color: oklch(0.542 0.13 57.6);
}

Tailwind CSS v4

@theme {
  --color-brandy-bear: #a65800;
  --color-brandy-bear-50: #ffedd1;
  --color-brandy-bear-100: #ffdebd;
  --color-brandy-bear-200: #ffc79c;
  --color-brandy-bear-300: #e9a772;
  --color-brandy-bear-400: #d8894a;
  --color-brandy-bear-500: #c56c12;
  --color-brandy-bear-600: #a65c15;
  --color-brandy-bear-700: #854911;
  --color-brandy-bear-800: #64340c;
  --color-brandy-bear-900: #462407;
  --color-brandy-bear-950: #2d1200;
}

SCSS

$brandy-bear: #a65800;
$brandy-bear-rgb: 166, 88, 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);
}