#711000

CSS

:root {
  --liquorice-red: #711000;
  --liquorice-red-rgb: 113 16 0;
  --liquorice-red-oklch: oklch(0.354 0.133 32.4);
}

.element {
  color: var(--liquorice-red);
  background-color: hsl(8 100% 22%);
  border-color: oklch(0.354 0.133 32.4);
}

Tailwind CSS v4

@theme {
  --color-liquorice-red: #711000;
  --color-liquorice-red-50: #ffe8dc;
  --color-liquorice-red-100: #ffd9cb;
  --color-liquorice-red-200: #ffc0af;
  --color-liquorice-red-300: #f39e8a;
  --color-liquorice-red-400: #e17f6b;
  --color-liquorice-red-500: #cf604a;
  --color-liquorice-red-600: #af5240;
  --color-liquorice-red-700: #8c4132;
  --color-liquorice-red-800: #692e25;
  --color-liquorice-red-900: #4a1f19;
  --color-liquorice-red-950: #300e0a;
}

SCSS

$liquorice-red: #711000;
$liquorice-red-rgb: 113, 16, 0;
$liquorice-red-light: mix(#fff, $liquorice-red, 20%);
$liquorice-red-dark: mix(#000, $liquorice-red, 20%);

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