#B54C13

CSS

:root {
  --funky-monkey: #b54c13;
  --funky-monkey-rgb: 181 76 19;
  --funky-monkey-oklch: oklch(0.547 0.15 43.8);
}

.element {
  color: var(--funky-monkey);
  background-color: hsl(21 81% 39%);
  border-color: oklch(0.547 0.15 43.8);
}

Tailwind CSS v4

@theme {
  --color-funky-monkey: #b54c13;
  --color-funky-monkey-50: #ffe9d2;
  --color-funky-monkey-100: #ffd9be;
  --color-funky-monkey-200: #ffc09e;
  --color-funky-monkey-300: #f79e74;
  --color-funky-monkey-400: #e67e4f;
  --color-funky-monkey-500: #d45d20;
  --color-funky-monkey-600: #b3501e;
  --color-funky-monkey-700: #904018;
  --color-funky-monkey-800: #6c2d12;
  --color-funky-monkey-900: #4c1e0b;
  --color-funky-monkey-950: #320d01;
}

SCSS

$funky-monkey: #b54c13;
$funky-monkey-rgb: 181, 76, 19;
$funky-monkey-light: mix(#fff, $funky-monkey, 20%);
$funky-monkey-dark: mix(#000, $funky-monkey, 20%);

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