Crown Blue

CSS

:root {
  --crown-blue: #484e68;
  --crown-blue-rgb: 72 78 104;
  --crown-blue-oklch: oklch(0.429 0.044 274.3);
}

.element {
  color: var(--crown-blue);
  background-color: hsl(229 18% 35%);
  border-color: oklch(0.429 0.044 274.3);
}

Tailwind CSS v4

@theme {
  --color-crown-blue: #484e68;
  --color-crown-blue-50: #f1f4ff;
  --color-crown-blue-100: #e4e7f7;
  --color-crown-blue-200: #cfd3e7;
  --color-crown-blue-300: #b1b6ce;
  --color-crown-blue-400: #969db9;
  --color-crown-blue-500: #7d84a4;
  --color-crown-blue-600: #6a708a;
  --color-crown-blue-700: #555a6f;
  --color-crown-blue-800: #3d4252;
  --color-crown-blue-900: #2a2d39;
  --color-crown-blue-950: #171a23;
}

SCSS

$crown-blue: #484e68;
$crown-blue-rgb: 72, 78, 104;
$crown-blue-light: mix(#fff, $crown-blue, 20%);
$crown-blue-dark: mix(#000, $crown-blue, 20%);

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