Crowberry Blue

CSS

:root {
  --crowberry-blue: #003447;
  --crowberry-blue-rgb: 0 52 71;
  --crowberry-blue-oklch: oklch(0.304 0.06 229.5);
}

.element {
  color: var(--crowberry-blue);
  background-color: hsl(196 100% 14%);
  border-color: oklch(0.304 0.06 229.5);
}

Tailwind CSS v4

@theme {
  --color-crowberry-blue: #003447;
  --color-crowberry-blue-50: #e5f9ff;
  --color-crowberry-blue-100: #d5ecf9;
  --color-crowberry-blue-200: #bbdaea;
  --color-crowberry-blue-300: #99bed1;
  --color-crowberry-blue-400: #79a6bb;
  --color-crowberry-blue-500: #5a8ea6;
  --color-crowberry-blue-600: #4d788d;
  --color-crowberry-blue-700: #3d6071;
  --color-crowberry-blue-800: #2b4753;
  --color-crowberry-blue-900: #1d313a;
  --color-crowberry-blue-950: #0d1d24;
}

SCSS

$crowberry-blue: #003447;
$crowberry-blue-rgb: 0, 52, 71;
$crowberry-blue-light: mix(#fff, $crowberry-blue, 20%);
$crowberry-blue-dark: mix(#000, $crowberry-blue, 20%);

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