#AC6220

CSS

:root {
  --light-brown: #ac6220;
  --light-brown-rgb: 172 98 32;
  --light-brown-oklch: oklch(0.57 0.122 57.3);
}

.element {
  color: var(--light-brown);
  background-color: hsl(28 69% 40%);
  border-color: oklch(0.57 0.122 57.3);
}

Tailwind CSS v4

@theme {
  --color-light-brown: #ac6220;
  --color-light-brown-50: #ffeed3;
  --color-light-brown-100: #ffdfc0;
  --color-light-brown-200: #fcc8a0;
  --color-light-brown-300: #e6a877;
  --color-light-brown-400: #d48b51;
  --color-light-brown-500: #c16e23;
  --color-light-brown-600: #a35e20;
  --color-light-brown-700: #834b1a;
  --color-light-brown-800: #623512;
  --color-light-brown-900: #45240b;
  --color-light-brown-950: #2c1301;
}

SCSS

$light-brown: #ac6220;
$light-brown-rgb: 172, 98, 32;
$light-brown-light: mix(#fff, $light-brown, 20%);
$light-brown-dark: mix(#000, $light-brown, 20%);

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