piotaapps / tinycolor

Flutter Color manipulation and conversion

tinycolor

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:tinycolor/tinycolor.dart';

final TinyColor = TinyColor(Colors.green);

Now you can also use the package to extend the native Color class with all the same features, but simpler. To use extension update, make sure to change envieronment sdk version in pubspec like this: sdk: ">=2.6.0 <3.0.0"

From a Hex String

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

TinyColor.fromString('#FE5567');

From RGB int values

TinyColor.fromRGB(r: 255, g: 255, b:255);

From HSL color

HslColor color = HslColor(h: 250, s: 57, l: 30);
TinyColor.fromHSL(color);

From HSV color

HSVColor color = HSVColor(h: 250, s: 57, v: 30);
TinyColor.fromHSV(color);

From Flutter's Color

TinyColor tinyColor = Colors.blue.toTinyColor();

Properties

color

Returns the flutter Color after operations

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

Methods

getBrightness

Returns the perceived brightness of a color, from 0-255, 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

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

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;

setAlpha

Sets the alpha value on the current color.

final color = TinyColor(Colors.red).setAlpha(10);

setOpacity

Sets the opacity value on the current color.

final color = TinyColor(Colors.red).setOpacity(0.5);

Color Modification

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

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

lighten

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

TinyColor(Colors.red).lighten().color;
TinyColor(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(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(Colors.red).darken().color;
TinyColor(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(Color.red).tint().color;
TinyColor(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(Colors.red).shade().color;
TinyColor(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(Colors.red).desaturate().color;
TinyColor(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(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(Colors.red).greyscale().color;
// or with Color extension
Colors.red.greyscale;

spin

spin: function(amount = 0) -> 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(Colors.red).spin(180).color;
// or with Color extension
Colors.red.spin(180);

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

compliment

compliment: function() -> TinyColor. Returns the Complimentary Color for dynamic matching.

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

mix

mix: function(toColor, amount = 10) -> TinyColor. Blends the color with another color a given amount, from 0 - 100, default 50.

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

Common operations

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