#AE633B

CSS

:root {
  --monument-valley: #ae633b;
  --monument-valley-rgb: 174 99 59;
  --monument-valley-oklch: oklch(0.577 0.111 47.6);
}

.element {
  color: var(--monument-valley);
  background-color: hsl(21 49% 46%);
  border-color: oklch(0.577 0.111 47.6);
}

Tailwind CSS v4

@theme {
  --color-monument-valley: #ae633b;
  --color-monument-valley-50: #ffedda;
  --color-monument-valley-100: #ffdec8;
  --color-monument-valley-200: #fcc7aa;
  --color-monument-valley-300: #e6a784;
  --color-monument-valley-400: #d48963;
  --color-monument-valley-500: #c16d40;
  --color-monument-valley-600: #a35c37;
  --color-monument-valley-700: #834a2c;
  --color-monument-valley-800: #62351f;
  --color-monument-valley-900: #442415;
  --color-monument-valley-950: #2c1306;
}

SCSS

$monument-valley: #ae633b;
$monument-valley-rgb: 174, 99, 59;
$monument-valley-light: mix(#fff, $monument-valley, 20%);
$monument-valley-dark: mix(#000, $monument-valley, 20%);

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