RayRgb8 class base

8-bit RGB color implementation with support for multiple input/output formats.

Stored internally as ARGB integer for Flutter compatibility and performance. Each color channel uses 8 bits (0-255 range).

Inheritance

• Object
• Ray
• RayRgbBase<RayRgb8, int>
• RayRgb8

Available extensions

• RayToFlutterColor

Constructors

RayRgb8.empty()

Creates a transparent black color.

const

RayRgb8.fromArgbInt(int value)

Creates a RayRgb8 from a 32-bit ARGB integer value.

const

RayRgb8.fromComponents(num red, num green, num blue, [num alpha = 255])

Creates a RayRgb8 from individual RGBA component values (0-255).

factory

RayRgb8.fromComponentsNative(int red, int green, int blue, [int alpha = 255])

Creates a RayRgb8 from individual RGBA component values (0-255) with native precision.

const

RayRgb8.fromComponentsNormalized(num red, num green, num blue, [num alpha = 1.0])

Creates a RayRgb8 from normalized component values (0.0-1.0).

factory

RayRgb8.fromHex(String value, {HexFormat format = HexFormat.rgba})

Creates a RayRgb8 from a hexadecimal color string.

factory

RayRgb8.fromJson(int json)

Creates a RayRgb8 for JSON deserialization.

factory

RayRgb8.fromList(List<num> values)

Creates a RayRgb8 from a list of component values.

factory

RayRgb8.fromListNative(List<int> values)

Creates a RayRgb8 from a list of native component values (0-255).

RayRgb8.fromRgb16(dynamic rgb16Color)

Creates a RayRgb8 from a 16-bit RGB color, downscaling to 8-bit.

factory

RayRgb8.fromRgbaInt(int value)

Creates a RayRgb8 from a 32-bit RGBA integer value.

const

Properties

alpha → num

The alpha channel of this color as a normalized 8-bit value (0-255).

no setter, override

alphaNative → int

The alpha channel of this color in native 8-bit value (0-255).

no setter, override

alphaNormalized → double

The alpha channel as a normalized value (0.0-1.0).

no setter, inherited

blue → num

The blue channel of this color as a normalized 8-bit value (0-255).

no setter, override

blueNative → int

The blue channel of this color in native 8-bit value (0-255).

no setter, override

blueNormalized → double

The blue channel as a normalized value (0.0-1.0).

no setter, inherited

colorSpace → ColorSpace

The color space used by this Ray implementation.

no setter, override

green → num

The green channel of this color as a normalized 8-bit value (0-255).

no setter, override

greenNative → int

The green channel of this color in native 8-bit value (0-255).

no setter, override

greenNormalized → double

The green channel as a normalized value (0.0-1.0).

no setter, inherited

hashCode → int

The hash code for this object.

no setter, override

inverse → RayRgb8

Returns the color with inverted color values, preserving opacity.

no setter, override

inversePrecise → (double, double, double, double)

Shared inverse calculation helper that preserves fractional precision. Returns inverted RGBA values as doubles to preserve precision.

no setter, inherited

luminance → double

Returns the relative luminance of the color (0.0 = darkest, 1.0 = lightest).

no setter, inherited

opacity → double

The opacity of this color (0.0 = transparent, 1.0 = opaque).

no setter, inherited

red → num

The red channel of this color as a normalized 8-bit value (0-255).

no setter, override

redNative → int

The red channel of this color in native 8-bit value (0-255).

no setter, override

redNormalized → double

The red channel as a normalized value (0.0-1.0).

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

computeLuminance() → double

Computes the relative luminance using WCAG 2.0 specification (0.0-1.0). Where R, G, B are the linearized color components.

inherited

lerp(Ray other, double t) → RayRgb8

Linearly interpolates between this color and other.

override

lerpPrecise(Ray other, double t) → (double, double, double, double)

Shared lerp calculation helper that preserves fractional precision. Returns interpolated RGBA values as doubles to preserve precision.

inherited

maxContrast(Ray a, Ray b) → Ray

Returns the color (a or b) with the highest contrast to this color.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toArgbInt() → int

Returns the color as a 32-bit ARGB integer.

toColor() → Color

Available on Ray, provided by the RayToFlutterColor extension

Converts this RayRgb8 to a Flutter Color.

toColorSpace<T extends Ray>() → T

Converts this color to a different color space.

inherited

toColorWithOpacity(double opacity) → Color

Available on Ray, provided by the RayToFlutterColor extension

Converts this Ray to a Flutter Color with specific opacity.

toHex([int? length, HexFormat format = HexFormat.rgba]) → String

Converts the color to an sRGB hexadecimal string (6 or 8 characters).

toHsl() → RayHsl

Converts this color to HSL representation.

override

toJson() → int

Returns the color as a JSON-serializable value.

override

toList() → List<num>

Returns the color components as a list.

override

toOklab() → RayOklab

Converts this color to Oklab representation.

override

toOklch() → RayOklch

Converts this color to Oklch representation.

inherited

toRgb16() → RayRgb16

Optimized bit-depth conversion methods

override

toRgb8() → RayRgb8

Converts this color to 8-bit RGB representation.

override

toRgbaInt() → int

Returns the color as a 32-bit RGBA integer (alpha last).

toRgbaStr() → String

Converts the color to a CSS rgba() string.

inherited

toRgbInt() → int

Returns the color as a 24-bit RGB integer, discarding alpha.

toRgbStr() → String

Converts the color to a CSS rgb() string.

inherited

toString() → String

A string representation of this object.

override

withAlpha(double alpha) → RayRgb8

Creates a new RayRgb8 with the same RGB values but a different alpha.

override

withAlphaNative(int alpha) → RayRgb8

Creates a new RayRgb8 with a different alpha using native precision.

override

withBlue(double blue) → RayRgb8

Creates a new RayRgb8 with a different blue component.

override

withBlueNative(int blue) → RayRgb8

Creates a new RayRgb8 with a different blue component using native precision.

override

withGreen(double green) → RayRgb8

Creates a new RayRgb8 with a different green component.

override

withGreenNative(int green) → RayRgb8

Creates a new RayRgb8 with a different green component using native precision.

override

withOpacity(double opacity) → RayRgb8

Creates a new color with different opacity (0.0-1.0).

inherited

withRed(double red) → RayRgb8

Creates a new RayRgb8 with a different red component.

override

withRedNative(int red) → RayRgb8

Creates a new RayRgb8 with a different red component using native precision.

override

Operators

operator ==(Object other) → bool

The equality operator.

override

Static Methods

parse(String value) → RayRgb8

Parses a color string and returns a RayRgb8.

override