#B45D01

CSS

:root {
  --light-brown: #b45d01;
  --light-brown-rgb: 180 93 1;
  --light-brown-oklch: oklch(0.571 0.14 55.6);
}

.element {
  color: var(--light-brown);
  background-color: hsl(31 99% 35%);
  border-color: oklch(0.571 0.14 55.6);
}

Tailwind CSS v4

@theme {
  --color-light-brown: #b45d01;
  --color-light-brown-50: #ffeccf;
  --color-light-brown-100: #ffddbb;
  --color-light-brown-200: #ffc699;
  --color-light-brown-300: #eda56d;
  --color-light-brown-400: #dc8644;
  --color-light-brown-500: #ca6800;
  --color-light-brown-600: #aa5906;
  --color-light-brown-700: #894707;
  --color-light-brown-800: #663206;
  --color-light-brown-900: #482205;
  --color-light-brown-950: #2f1100;
}

SCSS

$light-brown: #b45d01;
$light-brown-rgb: 180, 93, 1;
$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);
}