Millennium Silver

CSS

:root {
  --millennium-silver: #8c9595;
  --millennium-silver-rgb: 140 149 149;
  --millennium-silver-oklch: oklch(0.663 0.01 196.9);
}

.element {
  color: var(--millennium-silver);
  background-color: hsl(180 4% 57%);
  border-color: oklch(0.663 0.01 196.9);
}

Tailwind CSS v4

@theme {
  --color-millennium-silver: #8c9595;
  --color-millennium-silver-50: #f2f6f6;
  --color-millennium-silver-100: #e4e9e9;
  --color-millennium-silver-200: #cfd6d6;
  --color-millennium-silver-300: #b2b9b9;
  --color-millennium-silver-400: #98a0a0;
  --color-millennium-silver-500: #7f8888;
  --color-millennium-silver-600: #6b7373;
  --color-millennium-silver-700: #565c5c;
  --color-millennium-silver-800: #3e4443;
  --color-millennium-silver-900: #2b2f2f;
  --color-millennium-silver-950: #181b1b;
}

SCSS

$millennium-silver: #8c9595;
$millennium-silver-rgb: 140, 149, 149;
$millennium-silver-light: mix(#fff, $millennium-silver, 20%);
$millennium-silver-dark: mix(#000, $millennium-silver, 20%);

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