LabColor class

A color in the CIELAB color space.

The CIELAB color space contains channels for lightness, a (red and green opponent values), and b (blue and yellow opponent values.)

Implemented types
Available extensions

Constructors

LabColor(num lightness, num a, num b, [int alpha = 255])
A color in the CIELAB color space.
const
LabColor.extrapolate(List<double> values)
Constructs a LabColor from a list of lab values on a 0 to 1 scale.
factory
LabColor.from(ColorModel color)
Constructs a LabColor from a RGB hex color.
factory
LabColor.fromColor(Color color)
Constructs a LabColor from color.
factory
LabColor.fromHex(String hex)
factory
LabColor.fromList(List<num> values)
Constructs a LabColor from a list of LAB values.
factory
LabColor.random({num minLightness = 0, num maxLightness = 100, num minA = 0, num maxA = 100, num minB = 0, num maxB = 100, int? seed})
Generates a LabColor at random.
factory

Properties

a num
The red to green opponent color value.
finalinherited
alpha int
The alpha value of this color.
finalinherited
b num
The yellow to blue opponent color value.
finalinherited
blue int
The blue value of this color.
no setterinherited
chroma double
Calculates a value representing this color's lightness on a linear scale.
no setterinherited
green int
The green value of this color.
no setterinherited
hashCode int
The hash code for this object.
no setterinherited
hex String
Returns this as a hexidecimal string.
no setterinherited
hue num
Gets the hue value of this color.
no setterinherited
inverted LabColor
Inverts the values of this ColorModel, excluding alpha, in its own color space.
no setter
isBlack bool
Returns true if this color is pure black.
no setterinherited
isMonochromatic bool
Returns true if this color is monochromatic.
no setterinherited
isWhite bool
Returns true if this color is pure white.
no setterinherited
lightness num
Lightness represents the black to white value.
finalinherited
opacity double
The alpha value as a double normalized to a 0.0 to 1.0 range.
no setterinherited
opposite LabColor
Returns the color with the hue opposite of this colors'.
no setter
red int
The red value of this color.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
saturation num
The saturation value of this color. Color spaces without a saturation value will be converted to HSL to retrieve the value.
no setterinherited
value int
A 32 bit value representing this color.
no setteroverride

Methods

castTo(ColorModel other) → ColorModel
Converts this color to other's color space.
inherited
computeLuminance() double
Returns a brightness value between 0 for darkest and 1 for lightest.
inherited
convert(ColorModel other) LabColor
Converts other to this color's color space.
cooler(num amount, {bool relative = true}) LabColor
Adjusts the hue of this color by amount towards 270 degrees, capping the value at 270.
copyWith({num? lightness, num? a, num? b, int? alpha}) LabColor
Returns a copy of this color modified with the provided values.
distanceTo(ColorModel color) double
Returns the distance between this color's hue and color's hue in degrees.
inherited
equals(ColorModel color) bool
Compares colors in the RGB color space.
inherited
interpolate(ColorModel end, double step) LabColor
Interpolates to step between this and end.
lerpTo(ColorModel color, int steps, {ColorSpace? colorSpace, bool excludeOriginalColors = false}) List<LabColor>
Returns the interpolated steps between this color and color.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
rotateHue(num amount) LabColor
Rotates the hue of this color by amount in degrees.
rotateHueRad(double amount) LabColor
Rotates the hue of this color by amount in radians.
toCmykColor() CmykColor
Converts this to the CMYK color space.
inherited
toHsbColor() HsbColor
Converts this to the HSV color space.
inherited
toHsiColor() HsiColor
Converts this to the HSI color space.
inherited
toHslColor() HslColor
Converts this to the HSL color space.
inherited
toHspColor() HspColor
Converts this to the HSP color space.
inherited
toLabColor() LabColor
Converts this to the LAB color space.
toList() List<num>
Returns a fixed-length list containing the lightness, a, and b values, in that order.
inherited
toListWithAlpha() List<num>
Returns a fixed-length list containing the lightness, a, b, and alpha values, in that order.
inherited
toOklabColor() OklabColor
Converts this to the Oklab color space.
inherited
toRgbColor() RgbColor
Converts this to the RGB color space.
inherited
toString() String
A string representation of this object.
inherited
toXyzColor() XyzColor
Converts this to the XYZ color space.
inherited
warmer(num amount, {bool relative = true}) LabColor
Adjusts the hue of this color by amount towards 90 degrees, capping the value at 90.
withAlpha(int alpha) LabColor
Returns this LabColor modified with the provided alpha value.
withBlue(num blue) LabColor
Returns a new color that matches this color with the blue channel replaced with b (which ranges from 0 to 255).
override
withChroma(double chroma) LabColor
Converts this color to the Oklab color space, calculates and applies a new lightness value from the proivded chroma value, and converts it back to the original color space.
withGreen(num green) LabColor
Returns a new color that matches this color with the green channel replaced with g (which ranges from 0 to 255).
override
withHue(num hue) LabColor
Returns this LabColor modified with the provided hue value.
withOpacity(double opacity) LabColor
Returns this ColorModel with the provided opacity value.
withRed(num red) LabColor
Returns a new color that matches this color with the red channel replaced with r (which ranges from 0 to 255).
override
withValues(List<num> values) LabColor
Returns a color in this color's color space with the values provided.

Operators

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