#B65A00

CSS

:root {
  --light-brown: #b65a00;
  --light-brown-rgb: 182 90 0;
  --light-brown-oklch: oklch(0.569 0.144 53.3);
}

.element {
  color: var(--light-brown);
  background-color: hsl(30 100% 36%);
  border-color: oklch(0.569 0.144 53.3);
}

Tailwind CSS v4

@theme {
  --color-light-brown: #b65a00;
  --color-light-brown-50: #ffebce;
  --color-light-brown-100: #ffdcba;
  --color-light-brown-200: #ffc499;
  --color-light-brown-300: #f0a36d;
  --color-light-brown-400: #df8444;
  --color-light-brown-500: #cd6500;
  --color-light-brown-600: #ad5606;
  --color-light-brown-700: #8b4507;
  --color-light-brown-800: #683107;
  --color-light-brown-900: #492105;
  --color-light-brown-950: #301000;
}

SCSS

$light-brown: #b65a00;
$light-brown-rgb: 182, 90, 0;
$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);
}