Lisbon Brown

CSS

:root {
  --lisbon-brown: #423921;
  --lisbon-brown-rgb: 66 57 33;
  --lisbon-brown-oklch: oklch(0.347 0.04 89.7);
}

.element {
  color: var(--lisbon-brown);
  background-color: hsl(44 33% 19%);
  border-color: oklch(0.347 0.04 89.7);
}

Tailwind CSS v4

@theme {
  --color-lisbon-brown: #423921;
  --color-lisbon-brown-50: #f9f5e9;
  --color-lisbon-brown-100: #ede8d9;
  --color-lisbon-brown-200: #dad4c1;
  --color-lisbon-brown-300: #bfb7a1;
  --color-lisbon-brown-400: #a89e84;
  --color-lisbon-brown-500: #908568;
  --color-lisbon-brown-600: #7a7158;
  --color-lisbon-brown-700: #625a46;
  --color-lisbon-brown-800: #484233;
  --color-lisbon-brown-900: #322d22;
  --color-lisbon-brown-950: #1e1a12;
}

SCSS

$lisbon-brown: #423921;
$lisbon-brown-rgb: 66, 57, 33;
$lisbon-brown-light: mix(#fff, $lisbon-brown, 20%);
$lisbon-brown-dark: mix(#000, $lisbon-brown, 20%);

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