#757479

CSS

:root {
  --paris-paving: #757479;
  --paris-paving-rgb: 117 116 121;
  --paris-paving-oklch: oklch(0.561 0.008 295.3);
}

.element {
  color: var(--paris-paving);
  background-color: hsl(252 2% 46%);
  border-color: oklch(0.561 0.008 295.3);
}

Tailwind CSS v4

@theme {
  --color-paris-paving: #757479;
  --color-paris-paving-50: #f5f5f7;
  --color-paris-paving-100: #e8e7ea;
  --color-paris-paving-200: #d4d3d7;
  --color-paris-paving-300: #b8b7bb;
  --color-paris-paving-400: #9e9da3;
  --color-paris-paving-500: #86858b;
  --color-paris-paving-600: #727175;
  --color-paris-paving-700: #5b5a5e;
  --color-paris-paving-800: #424245;
  --color-paris-paving-900: #2e2d30;
  --color-paris-paving-950: #1b1a1c;
}

SCSS

$paris-paving: #757479;
$paris-paving-rgb: 117, 116, 121;
$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);
}