#B54C1B

CSS

:root {
  --funky-monkey: #b54c1b;
  --funky-monkey-rgb: 181 76 27;
  --funky-monkey-oklch: oklch(0.547 0.149 42.3);
}

.element {
  color: var(--funky-monkey);
  background-color: hsl(19 74% 41%);
  border-color: oklch(0.547 0.149 42.3);
}

Tailwind CSS v4

@theme {
  --color-funky-monkey: #b54c1b;
  --color-funky-monkey-50: #ffe9d3;
  --color-funky-monkey-100: #ffd9c0;
  --color-funky-monkey-200: #ffc0a0;
  --color-funky-monkey-300: #f79e77;
  --color-funky-monkey-400: #e67e53;
  --color-funky-monkey-500: #d45d27;
  --color-funky-monkey-600: #b35024;
  --color-funky-monkey-700: #903f1c;
  --color-funky-monkey-800: #6c2d15;
  --color-funky-monkey-900: #4c1e0d;
  --color-funky-monkey-950: #320d02;
}

SCSS

$funky-monkey: #b54c1b;
$funky-monkey-rgb: 181, 76, 27;
$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);
}