Colourythm

This is library for set text color depend with background and output is black or white text color

Installation

Add this in build.gradle of project

allprojects {
  repositories {
    ...
    maven { url 'https://jitpack.io' }
  }
}

and add this in build.gradle of module

dependencies {
  implementation 'com.github.mikkipastel:Colourythm:1.0.0-beta'
}

Feature

This library calculate with WCAG20 standard which same Material Design Color Tool. Concept for calculation is calculate luminance from background color and compare with black and white color for contrast ratio of at least 4.5:1 with normal text.

Then this library feature is genarate text color with backgroud color and result is white or black

Usage

You can get white/black from background for dynamic use in other module and application by put your background color at parameter to generate in function genTextBWcolorFromBG()

put rgb color : Colourythm().genTextBWcolorFromBg(r: Int, g: Int, b: Int)

textSample.setTextColor(Colourythm().genTextBWcolorFromBg(233, 30, 99))

put hex color : Colourythm().genTextBWcolorFromBg(rgb: Int)

textSample.setTextColor(Colourythm().genTextBWcolorFromBg(0xd32f2f))

put resource color: Colourythm().genTextBWcolorFromBg(context: Context, resource: Int)

val color = R.color.colorBrown50
textSample.setTextColor(Colourythm().genTextBWcolorFromBg(this, color))

or Colourythm().genTextBWcolorFromBg(rgb: Int)

val color = ContextCompat.getColor(this, R.color.colorGrey900)
textSample.setTextColor(Colourythm().genTextBWcolorFromBg(color))

Another Feature

and can use another feature for

get luminance from red, green, blue : Colourythm().luminance(r: Int, g: Int, b: Int)
get rgb from hex : ConvertColoury().getGreyScaleFromRGB(r: Int, g: Int, b: Int)
get gray scale from rgb : ConvertColoury().getRGBFromHEX(rgb: Int)

License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.