wcagLevel function

String wcagLevel(
  1. Color fg,
  2. Color bg
)

Returns 'AAA', 'AA', or 'Fail'.

Implementation

String wcagLevel(Color fg, Color bg) {
  final ratio = contrastRatio(fg, bg);
  if (ratio >= 7.0) return 'AAA';
  if (ratio >= 4.5) return 'AA';
  return 'Fail';
}