Java tutorial
//package com.java2s; //License from project: Open Source License import android.graphics.Color; public class Main { public static int lighten(int color, double fraction) { int red = Color.red(color); int green = Color.green(color); int blue = Color.blue(color); red = lightenColor(red, fraction); green = lightenColor(green, fraction); blue = lightenColor(blue, fraction); int alpha = Color.alpha(color); return Color.argb(alpha, red, green, blue); } private static int lightenColor(int color, double fraction) { return (int) Math.min(color + (color * fraction), 255); } }