TonalPalette class

A convenience class for retrieving colors that are constant in hue and chroma, but vary in tone.

This class can be instantiated in two ways:

  1. of From hue and chroma. (preferred)
  2. fromList From a fixed-size (TonalPalette.commonSize) list of ints representing ARBG colors. Correctness (constant hue and chroma) of the input is not enforced. get will only return the input colors, corresponding to commonTones. This also initializes the key color to black.


asList List<int>
Returns a fixed-size list of ARGB color ints for common tone values.
no setter
chroma double
no setter
hashCode int
The hash code for this object.
no setteroverride
hue double
no setter
keyColor Hct
no setter
runtimeType Type
A representation of the runtime type of the object.
no setterinherited


get(int tone) int
Returns the ARGB representation of an HCT color.
getHct(double tone) Hct
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
toString() String
A string representation of this object.


operator ==(Object other) bool
The equality operator.

Static Properties

commonSize int

Static Methods

createKeyColor(double hue, double chroma) Hct
Creates a key color from a hue and a chroma. The key color is the first tone, starting from T50, matching the given hue and chroma. Key color Hct
fromHct(Hct hct) TonalPalette
Create a Tonal Palette from hue and chroma of hct.
fromList(List<int> colors) TonalPalette
Create colors from a fixed-size list of ARGB color ints.
of(double hue, double chroma) TonalPalette
Create colors using hue and chroma.


commonTones → const List<int>
Commonly-used tone values.