Grey Charcoal

CSS

:root {
  --grey-charcoal: #6e6969;
  --grey-charcoal-rgb: 110 105 105;
  --grey-charcoal-oklch: oklch(0.525 0.006 17.4);
}

.element {
  color: var(--grey-charcoal);
  background-color: hsl(0 2% 42%);
  border-color: oklch(0.525 0.006 17.4);
}

Tailwind CSS v4

@theme {
  --color-grey-charcoal: #6e6969;
  --color-grey-charcoal-50: #f7f4f4;
  --color-grey-charcoal-100: #eae7e7;
  --color-grey-charcoal-200: #d7d3d3;
  --color-grey-charcoal-300: #bab6b6;
  --color-grey-charcoal-400: #a29d9d;
  --color-grey-charcoal-500: #8a8484;
  --color-grey-charcoal-600: #757070;
  --color-grey-charcoal-700: #5e5a5a;
  --color-grey-charcoal-800: #444142;
  --color-grey-charcoal-900: #2f2d2d;
  --color-grey-charcoal-950: #1c1a1a;
}

SCSS

$grey-charcoal: #6e6969;
$grey-charcoal-rgb: 110, 105, 105;
$grey-charcoal-light: mix(#fff, $grey-charcoal, 20%);
$grey-charcoal-dark: mix(#000, $grey-charcoal, 20%);

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