Silver

CSS

:root {
  --silver: #c0c0c0;
  --silver-rgb: 192 192 192;
  --silver-oklch: oklch(0.808 0 0);
}

.element {
  color: var(--silver);
  background-color: hsl(0 0% 75%);
  border-color: oklch(0.808 0 0);
}

Tailwind CSS v4

@theme {
  --color-silver: #c0c0c0;
  --color-silver-50: #f5f5f5;
  --color-silver-100: #e8e8e8;
  --color-silver-200: #d4d4d4;
  --color-silver-300: #b7b7b7;
  --color-silver-400: #9e9e9e;
  --color-silver-500: #868686;
  --color-silver-600: #717171;
  --color-silver-700: #5b5b5b;
  --color-silver-800: #424242;
  --color-silver-900: #2e2e2e;
  --color-silver-950: #1b1b1b;
}

SCSS

$silver: #c0c0c0;
$silver-rgb: 192, 192, 192;
$silver-light: mix(#fff, $silver, 20%);
$silver-dark: mix(#000, $silver, 20%);

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