#757478

CSS

:root {
  --paris-paving: #757478;
  --paris-paving-rgb: 117 116 120;
  --paris-paving-oklch: oklch(0.561 0.006 297.6);
}

.element {
  color: var(--paris-paving);
  background-color: hsl(255 2% 46%);
  border-color: oklch(0.561 0.006 297.6);
}

Tailwind CSS v4

@theme {
  --color-paris-paving: #757478;
  --color-paris-paving-50: #f5f5f7;
  --color-paris-paving-100: #e8e7ea;
  --color-paris-paving-200: #d4d4d6;
  --color-paris-paving-300: #b8b7ba;
  --color-paris-paving-400: #9f9ea2;
  --color-paris-paving-500: #86858a;
  --color-paris-paving-600: #727175;
  --color-paris-paving-700: #5b5a5d;
  --color-paris-paving-800: #424244;
  --color-paris-paving-900: #2e2d2f;
  --color-paris-paving-950: #1b1a1c;
}

SCSS

$paris-paving: #757478;
$paris-paving-rgb: 117, 116, 120;
$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);
}