Naval Blue

CSS

:root {
  --naval-blue: #384b6b;
  --naval-blue-rgb: 56 75 107;
  --naval-blue-oklch: oklch(0.411 0.059 260.5);
}

.element {
  color: var(--naval-blue);
  background-color: hsl(218 31% 32%);
  border-color: oklch(0.411 0.059 260.5);
}

Tailwind CSS v4

@theme {
  --color-naval-blue: #384b6b;
  --color-naval-blue-50: #ecf6ff;
  --color-naval-blue-100: #dde8fc;
  --color-naval-blue-200: #c7d5ee;
  --color-naval-blue-300: #a7b8d6;
  --color-naval-blue-400: #8b9fc2;
  --color-naval-blue-500: #7087ae;
  --color-naval-blue-600: #5f7293;
  --color-naval-blue-700: #4c5b76;
  --color-naval-blue-800: #364357;
  --color-naval-blue-900: #252e3d;
  --color-naval-blue-950: #131b26;
}

SCSS

$naval-blue: #384b6b;
$naval-blue-rgb: 56, 75, 107;
$naval-blue-light: mix(#fff, $naval-blue, 20%);
$naval-blue-dark: mix(#000, $naval-blue, 20%);

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