#54341E

CSS

:root {
  --peat-brown: #54341e;
  --peat-brown-rgb: 84 52 30;
  --peat-brown-oklch: oklch(0.358 0.058 54.3);
}

.element {
  color: var(--peat-brown);
  background-color: hsl(24 47% 22%);
  border-color: oklch(0.358 0.058 54.3);
}

Tailwind CSS v4

@theme {
  --color-peat-brown: #54341e;
  --color-peat-brown-50: #fff1e6;
  --color-peat-brown-100: #f8e4d6;
  --color-peat-brown-200: #e8cfbd;
  --color-peat-brown-300: #cfb09c;
  --color-peat-brown-400: #ba967f;
  --color-peat-brown-500: #a57c62;
  --color-peat-brown-600: #8b6953;
  --color-peat-brown-700: #705442;
  --color-peat-brown-800: #533d30;
  --color-peat-brown-900: #3a2a20;
  --color-peat-brown-950: #241710;
}

SCSS

$peat-brown: #54341e;
$peat-brown-rgb: 84, 52, 30;
$peat-brown-light: mix(#fff, $peat-brown, 20%);
$peat-brown-dark: mix(#000, $peat-brown, 20%);

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