#6F6B6C

CSS

:root {
  --paris-paving: #6f6b6c;
  --paris-paving-rgb: 111 107 108;
  --paris-paving-oklch: oklch(0.532 0.005 0.1);
}

.element {
  color: var(--paris-paving);
  background-color: hsl(345 2% 43%);
  border-color: oklch(0.532 0.005 0.1);
}

Tailwind CSS v4

@theme {
  --color-paris-paving: #6f6b6c;
  --color-paris-paving-50: #f6f4f5;
  --color-paris-paving-100: #e9e7e8;
  --color-paris-paving-200: #d6d3d4;
  --color-paris-paving-300: #bab6b7;
  --color-paris-paving-400: #a19d9e;
  --color-paris-paving-500: #898586;
  --color-paris-paving-600: #747071;
  --color-paris-paving-700: #5d5a5b;
  --color-paris-paving-800: #444242;
  --color-paris-paving-900: #2f2d2e;
  --color-paris-paving-950: #1b1a1b;
}

SCSS

$paris-paving: #6f6b6c;
$paris-paving-rgb: 111, 107, 108;
$paris-paving-light: mix(#fff, $paris-paving, 20%);
$paris-paving-dark: mix(#000, $paris-paving, 20%);

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