Java tutorial
//package com.java2s; import android.graphics.Color; public class Main { public static int lightenColor(int color, float factor) { float r = Color.red(color) * factor; float g = Color.green(color) * factor; float b = Color.blue(color) * factor; int ir = Math.min(255, (int) r); int ig = Math.min(255, (int) g); int ib = Math.min(255, (int) b); int ia = Color.alpha(color); return (Color.argb(ia, ir, ig, ib)); } }