Prehistoric Stone

CSS

:root {
  --prehistoric-stone: #9aa0a3;
  --prehistoric-stone-rgb: 154 160 163;
  --prehistoric-stone-oklch: oklch(0.702 0.008 228.9);
}

.element {
  color: var(--prehistoric-stone);
  background-color: hsl(200 5% 62%);
  border-color: oklch(0.702 0.008 228.9);
}

Tailwind CSS v4

@theme {
  --color-prehistoric-stone: #9aa0a3;
  --color-prehistoric-stone-50: #f3f5f7;
  --color-prehistoric-stone-100: #e5e8ea;
  --color-prehistoric-stone-200: #d1d5d7;
  --color-prehistoric-stone-300: #b3b8bb;
  --color-prehistoric-stone-400: #9a9fa2;
  --color-prehistoric-stone-500: #81878a;
  --color-prehistoric-stone-600: #6d7275;
  --color-prehistoric-stone-700: #575c5e;
  --color-prehistoric-stone-800: #404345;
  --color-prehistoric-stone-900: #2c2e2f;
  --color-prehistoric-stone-950: #191b1c;
}

SCSS

$prehistoric-stone: #9aa0a3;
$prehistoric-stone-rgb: 154, 160, 163;
$prehistoric-stone-light: mix(#fff, $prehistoric-stone, 20%);
$prehistoric-stone-dark: mix(#000, $prehistoric-stone, 20%);

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