Cover of Night

CSS

:root {
  --cover-of-night: #494e4f;
  --cover-of-night-rgb: 73 78 79;
  --cover-of-night-oklch: oklch(0.42 0.007 211);
}

.element {
  color: var(--cover-of-night);
  background-color: hsl(190 4% 30%);
  border-color: oklch(0.42 0.007 211);
}

Tailwind CSS v4

@theme {
  --color-cover-of-night: #494e4f;
  --color-cover-of-night-50: #f3f6f6;
  --color-cover-of-night-100: #e5e8e9;
  --color-cover-of-night-200: #d1d5d6;
  --color-cover-of-night-300: #b4b8b9;
  --color-cover-of-night-400: #9a9fa1;
  --color-cover-of-night-500: #818789;
  --color-cover-of-night-600: #6e7374;
  --color-cover-of-night-700: #585c5c;
  --color-cover-of-night-800: #404344;
  --color-cover-of-night-900: #2c2e2f;
  --color-cover-of-night-950: #191b1b;
}

SCSS

$cover-of-night: #494e4f;
$cover-of-night-rgb: 73, 78, 79;
$cover-of-night-light: mix(#fff, $cover-of-night, 20%);
$cover-of-night-dark: mix(#000, $cover-of-night, 20%);

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