minimumAcceptableContrastRatio property

num get minimumAcceptableContrastRatio

Provides minimum acceptable ratio for given ReadabilityLevel.

Implementation

num get minimumAcceptableContrastRatio {
  const minAcceptableContrastForLevel = {
    ReadabilityLevel.normal: 4.5,
    ReadabilityLevel.normalLargeText: 3,
    ReadabilityLevel.high: 7,
    ReadabilityLevel.highLargeText: 4.5,
  };
  return minAcceptableContrastForLevel[this]!;
}