Shadow of the Colossus

CSS

:root {
  --shadow-of-the-colossus: #a3a2a1;
  --shadow-of-the-colossus-rgb: 163 162 161;
  --shadow-of-the-colossus-oklch: oklch(0.713 0.002 67.8);
}

.element {
  color: var(--shadow-of-the-colossus);
  background-color: hsl(30 1% 64%);
  border-color: oklch(0.713 0.002 67.8);
}

Tailwind CSS v4

@theme {
  --color-shadow-of-the-colossus: #a3a2a1;
  --color-shadow-of-the-colossus-50: #f5f5f4;
  --color-shadow-of-the-colossus-100: #e8e8e7;
  --color-shadow-of-the-colossus-200: #d5d4d3;
  --color-shadow-of-the-colossus-300: #b8b7b6;
  --color-shadow-of-the-colossus-400: #9f9e9d;
  --color-shadow-of-the-colossus-500: #878685;
  --color-shadow-of-the-colossus-600: #727170;
  --color-shadow-of-the-colossus-700: #5b5b5a;
  --color-shadow-of-the-colossus-800: #434242;
  --color-shadow-of-the-colossus-900: #2e2e2d;
  --color-shadow-of-the-colossus-950: #1b1a1a;
}

SCSS

$shadow-of-the-colossus: #a3a2a1;
$shadow-of-the-colossus-rgb: 163, 162, 161;
$shadow-of-the-colossus-light: mix(#fff, $shadow-of-the-colossus, 20%);
$shadow-of-the-colossus-dark: mix(#000, $shadow-of-the-colossus, 20%);

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