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Flutter Color manipulation and conversion, ported from JS tinycolor2

tinycolor2 #

TinyColor is a small library for Flutter color manipulation and conversion

A port of tinycolor2 by Brian Grinstead

Getting Started #

A TinyColor receives a Color as parameter.

import 'package:tinycolor2/tinycolor2.dart';

final TinyColor tinyColor = TinyColor.fromColor(Colors.green);

Now you can also use the package to extend the native Color class with all the same features, but simpler.

Constructors #

From Flutter's Color #

TinyColor.fromColor(Colors.blue);

From a Hex String #

The package uses Pigment by Bregy Malpartida Ramos to convert strings to Color

TinyColor.fromString('#FE5567');

From HSLColor #

final HSLColor color = HSLColor.fromAHSL(1.0, 250, 57, 30);
TinyColor.fromHSLColor(color);

From HSVColor #

final HSVColor color = HSVColor.fromAHSV(1.0, 250, 57, 30);
TinyColor.fromHSVColor(color);

Methods #

Conversions #

.toColor()

Returns the Flutter's Color

final Color color = TinyColor.fromColor(Colors.white).toColor();

.toHSLColor()

Returns the Flutter's HSLColor

final HSLColor color = TinyColor.fromColor(Colors.white).toHSLColor();

.toHSVColor()

Returns the Flutter's HSVColor

final HSVColor color = TinyColor.fromColor(Colors.white).toHSVColor();

Properties #

.isLight()

Return a boolean indicating whether the color's perceived brightness is light.

TinyColor.fromString("#ffffff").isLight(); // true
TinyColor.fromString("#000000").isLight(); // false
// or with Color extension
Colors.white.isLight;  // true

.isDark()

Return a boolean indicating whether the color's perceived brightness is dark.

TinyColor.fromString("#ffffff").isDark(); // false
TinyColor.fromString("#000000").isDark(); // true
// or with Color extension
Colors.white.isDark;  // false

.getBrightness()

Returns the perceived brightness of a color, from 0 to 255, as defined by Web Content Accessibility Guidelines (Version 1.0).

TinyColor.fromString("#ffffff").getBrightness(); // 255
TinyColor.fromString("#000000").getBrightness(); // 0
// or with Color extension
Colors.grey.brightness;  // 127

.getLuminance()

Return the perceived luminance of a color, a shorthand for flutter Color.computeLuminance()

TinyColor.fromString("#ffffff").getLuminance();
// or with Color extension
Colors.white.luminance;

Utilities #

.clone()

clone: function() -> TinyColor. Instantiate a new TinyColor object with the same color. Any changes to the new one won't affect the old one.

final TinyColor color1 = TinyColor.fromColor(Colors.red);
final TinyColor color2 = color1.clone();
color2.setAlpha(20);

==

==: function(Object) -> bool. Compares if [Object] is the same TinyColor object.

final TinyColor color1 = TinyColor.fromColor(Colors.blue);
final TinyColor color2 = TinyColor.fromColor(Colors.yellow);
if (color1 == color2) return "same";
else return "different";

Modifications #

These methods manipulate the current color, and return it for chaining.

TinyColor.fromColor(Colors.red).lighten().desaturate().color;
// or with Color extension
Colors.red.lighten().desaturate();

.setAlpha()

Sets the alpha value on the current color, from 0 to 255.

TinyColor.fromColor(Colors.red).setAlpha(10);

.setOpacity()

Sets the opacity value on the current color, from 0.0 to 1.0.

TinyColor.fromColor(Colors.red).setOpacity(0.5);

.lighten()

lighten: function(amount = 10) -> TinyColor. Lighten the color a given amount, from 0 to 100. Providing 100 will always return white.

TinyColor.fromColor(Colors.red).lighten().color;
TinyColor.fromColor(Colors.red).lighten(100).color;
// or with Color extension
Colors.red.lighten(50);

.brighten()

brighten: function(amount = 10) -> TinyColor. Brighten the color a given amount, from 0 to 100.

TinyColor.fromColor(Colors.black).brighten().color;
// or with Color extension
Colors.black.brighten(50);

.darken()

darken: function(amount = 10) -> TinyColor. Darken the color a given amount, from 0 to 100. Providing 100 will always return black.

TinyColor.fromColor(Colors.red).darken().color;
TinyColor.fromColor(Colors.red).darken(100).color;
// or with Color extension
Colors.red.darken(50);

.tint()

Mix the color with pure white, from 0 to 100. Providing 0 will do nothing, providing 100 will always return white.

TinyColor.fromColor(Color.red).tint().color;
TinyColor.fromColor(Color.red).tint(100).color;
// or with Color extension
Colors.red.tint(50);

.shade()

Mix the color with pure black, from 0 to 100. Providing 0 will do nothing, providing 100 will always return black.

TinyColor.fromColor(Colors.red).shade().color;
TinyColor.fromColor(Colors.red).shade(100).color;
// or with Color extension
Colors.red.shade(50);

.desaturate()

desaturate: function(amount = 10) -> TinyColor. Desaturate the color a given amount, from 0 to 100. Providing 100 will is the same as calling greyscale.

TinyColor.fromColor(Colors.red).desaturate().color;
TinyColor.fromColor(Colors.red).desaturate(100).color;
// or with Color extension
Colors.red.desaturate(50);

.saturate()

saturate: function(amount = 10) -> TinyColor. Saturate the color a given amount, from 0 to 100.

TinyColor.fromColor(Colors.red).saturate().color;
// or with Color extension
Colors.red.saturate(50);

.greyscale()

greyscale: function() -> TinyColor. Completely desaturates a color into greyscale. Same as calling desaturate(100).

TinyColor.fromColor(Colors.red).greyscale().color;
// or with Color extension
Colors.red.greyscale();

.spin()

spin: function(amount) -> TinyColor. Spin the hue a given amount, from -360 to 360. Calling with 0, 360, or -360 will do nothing (since it sets the hue back to what it was before).

TinyColor.fromColor(Colors.red).spin(180).color;
// or with Color extension
Colors.red.spin(180);

// spin(0) and spin(360) do nothing
TinyColor.fromColor(Colors.red).spin(0).color;
TinyColor.fromColor(Colors.red).spin(360).color;

.complement()

complement: function() -> TinyColor. Returns the complementary color for dynamic matching.

TinyColor.fromColor(Colors.red).complement().color;
// or with Color extension
Colors.red.complement();

.mix()

mix: function(toColor, amount = 50) -> TinyColor. Blends the color with another color a given amount, from 0 to 100.

TinyColor.fromColor(Colors.red).mix(TinyColor.fromColor(Colors.yellow, 20)).color;
// or with Color extension
Colors.red.mix(Colors.yellow, 20);

Extensions #

All methods listed above are included in extensions. Note that some methods has changed to return a bool or double value instead to match with Dart approach, and the rest would return its original class type instead of TinyColor.

Color #

final TinyColor color = Colors.black.toTinyColor();
final HSVColor hsv = Colors.white.toHSVColor();
final HSLColor hsl = Colors.white.toHSLColor();
final bool isDark = Colors.yellow.isDark;
final bool isLight = Colors.red.isLight;
final double luminance = Colors.blue.luminance;
final double brightness = Colors.blue.brightness;
final Color newColor = Colors.green.mix(Colors.white, 50);
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Publisher

verified publisher icontinycommunity.dev

Flutter Color manipulation and conversion, ported from JS tinycolor2

Homepage

Documentation

API reference

License

Icon for licenses.MIT (LICENSE)

Dependencies

flutter, pigment

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