Tuscan Brown

CSS

:root {
  --tuscan-brown: #6f4c37;
  --tuscan-brown-rgb: 111 76 55;
  --tuscan-brown-oklch: oklch(0.45 0.058 51.7);
}

.element {
  color: var(--tuscan-brown);
  background-color: hsl(22 34% 33%);
  border-color: oklch(0.45 0.058 51.7);
}

Tailwind CSS v4

@theme {
  --color-tuscan-brown: #6f4c37;
  --color-tuscan-brown-50: #fff1e6;
  --color-tuscan-brown-100: #f8e3d6;
  --color-tuscan-brown-200: #e9cebe;
  --color-tuscan-brown-300: #d0b09c;
  --color-tuscan-brown-400: #bb9580;
  --color-tuscan-brown-500: #a57c63;
  --color-tuscan-brown-600: #8c6954;
  --color-tuscan-brown-700: #705443;
  --color-tuscan-brown-800: #533d30;
  --color-tuscan-brown-900: #3a2a21;
  --color-tuscan-brown-950: #241710;
}

SCSS

$tuscan-brown: #6f4c37;
$tuscan-brown-rgb: 111, 76, 55;
$tuscan-brown-light: mix(#fff, $tuscan-brown, 20%);
$tuscan-brown-dark: mix(#000, $tuscan-brown, 20%);

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