Frank Blue

CSS

:root {
  --frank-blue: #225288;
  --frank-blue-rgb: 34 82 136;
  --frank-blue-oklch: oklch(0.434 0.103 253.5);
}

.element {
  color: var(--frank-blue);
  background-color: hsl(212 60% 33%);
  border-color: oklch(0.434 0.103 253.5);
}

Tailwind CSS v4

@theme {
  --color-frank-blue: #225288;
  --color-frank-blue-50: #e2f7ff;
  --color-frank-blue-100: #d2eaff;
  --color-frank-blue-200: #b7d7ff;
  --color-frank-blue-300: #94baec;
  --color-frank-blue-400: #72a2da;
  --color-frank-blue-500: #5289c9;
  --color-frank-blue-600: #4674aa;
  --color-frank-blue-700: #385d88;
  --color-frank-blue-800: #264465;
  --color-frank-blue-900: #192f47;
  --color-frank-blue-950: #0a1b2e;
}

SCSS

$frank-blue: #225288;
$frank-blue-rgb: 34, 82, 136;
$frank-blue-light: mix(#fff, $frank-blue, 20%);
$frank-blue-dark: mix(#000, $frank-blue, 20%);

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