#B44D1D

CSS

:root {
  --funky-monkey: #b44d1d;
  --funky-monkey-rgb: 180 77 29;
  --funky-monkey-oklch: oklch(0.547 0.146 42.5);
}

.element {
  color: var(--funky-monkey);
  background-color: hsl(19 72% 41%);
  border-color: oklch(0.547 0.146 42.5);
}

Tailwind CSS v4

@theme {
  --color-funky-monkey: #b44d1d;
  --color-funky-monkey-50: #ffe9d3;
  --color-funky-monkey-100: #ffd9c0;
  --color-funky-monkey-200: #ffc1a1;
  --color-funky-monkey-300: #f69e78;
  --color-funky-monkey-400: #e57e54;
  --color-funky-monkey-500: #d35e29;
  --color-funky-monkey-600: #b25025;
  --color-funky-monkey-700: #8f401d;
  --color-funky-monkey-800: #6b2d16;
  --color-funky-monkey-900: #4b1f0e;
  --color-funky-monkey-950: #310e02;
}

SCSS

$funky-monkey: #b44d1d;
$funky-monkey-rgb: 180, 77, 29;
$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);
}