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]!;
}