Woad Blue

CSS

:root {
  --woad-blue: #597fb9;
  --woad-blue-rgb: 89 127 185;
  --woad-blue-oklch: oklch(0.593 0.099 258.6);
}

.element {
  color: var(--woad-blue);
  background-color: hsl(216 41% 54%);
  border-color: oklch(0.593 0.099 258.6);
}

Tailwind CSS v4

@theme {
  --color-woad-blue: #597fb9;
  --color-woad-blue-50: #e5f6ff;
  --color-woad-blue-100: #d5e9ff;
  --color-woad-blue-200: #bcd6ff;
  --color-woad-blue-300: #9bb9eb;
  --color-woad-blue-400: #7aa0d9;
  --color-woad-blue-500: #5d87c7;
  --color-woad-blue-600: #4f72a8;
  --color-woad-blue-700: #3f5b87;
  --color-woad-blue-800: #2b4364;
  --color-woad-blue-900: #1d2e46;
  --color-woad-blue-950: #0d1b2e;
}

SCSS

$woad-blue: #597fb9;
$woad-blue-rgb: 89, 127, 185;
$woad-blue-light: mix(#fff, $woad-blue, 20%);
$woad-blue-dark: mix(#000, $woad-blue, 20%);

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