#703F11

CSS

:root {
  --brown: #703f11;
  --brown-rgb: 112 63 17;
  --brown-oklch: oklch(0.419 0.089 58.7);
}

.element {
  color: var(--brown);
  background-color: hsl(29 74% 25%);
  border-color: oklch(0.419 0.089 58.7);
}

Tailwind CSS v4

@theme {
  --color-brown: #703f11;
  --color-brown-50: #fff0dc;
  --color-brown-100: #ffe2cb;
  --color-brown-200: #f1ccae;
  --color-brown-300: #daad89;
  --color-brown-400: #c69269;
  --color-brown-500: #b27747;
  --color-brown-600: #96653d;
  --color-brown-700: #795030;
  --color-brown-800: #5a3a22;
  --color-brown-900: #3f2817;
  --color-brown-950: #281608;
}

SCSS

$brown: #703f11;
$brown-rgb: 112, 63, 17;
$brown-light: mix(#fff, $brown, 20%);
$brown-dark: mix(#000, $brown, 20%);

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