Slippery Shale

CSS

:root {
  --slippery-shale: #7b766c;
  --slippery-shale-rgb: 123 118 108;
  --slippery-shale-oklch: oklch(0.567 0.016 84.6);
}

.element {
  color: var(--slippery-shale);
  background-color: hsl(40 6% 45%);
  border-color: oklch(0.567 0.016 84.6);
}

Tailwind CSS v4

@theme {
  --color-slippery-shale: #7b766c;
  --color-slippery-shale-50: #f7f5f0;
  --color-slippery-shale-100: #eae8e2;
  --color-slippery-shale-200: #d7d4cd;
  --color-slippery-shale-300: #bbb7ae;
  --color-slippery-shale-400: #a39e94;
  --color-slippery-shale-500: #8b867a;
  --color-slippery-shale-600: #767168;
  --color-slippery-shale-700: #5e5a53;
  --color-slippery-shale-800: #45423c;
  --color-slippery-shale-900: #302d29;
  --color-slippery-shale-950: #1c1a17;
}

SCSS

$slippery-shale: #7b766c;
$slippery-shale-rgb: 123, 118, 108;
$slippery-shale-light: mix(#fff, $slippery-shale, 20%);
$slippery-shale-dark: mix(#000, $slippery-shale, 20%);

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