Federal Blue

CSS

:root {
  --federal-blue: #43628b;
  --federal-blue-rgb: 67 98 139;
  --federal-blue-oklch: oklch(0.49 0.076 255.7);
}

.element {
  color: var(--federal-blue);
  background-color: hsl(214 35% 40%);
  border-color: oklch(0.49 0.076 255.7);
}

Tailwind CSS v4

@theme {
  --color-federal-blue: #43628b;
  --color-federal-blue-50: #e8f6ff;
  --color-federal-blue-100: #d9e9ff;
  --color-federal-blue-200: #c1d6f5;
  --color-federal-blue-300: #a0b9df;
  --color-federal-blue-400: #81a1cb;
  --color-federal-blue-500: #6488b8;
  --color-federal-blue-600: #55739b;
  --color-federal-blue-700: #445c7d;
  --color-federal-blue-800: #30445c;
  --color-federal-blue-900: #202f41;
  --color-federal-blue-950: #101b29;
}

SCSS

$federal-blue: #43628b;
$federal-blue-rgb: 67, 98, 139;
$federal-blue-light: mix(#fff, $federal-blue, 20%);
$federal-blue-dark: mix(#000, $federal-blue, 20%);

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