get Best Gray Contrast Color - Android Graphics

Android examples for Graphics:Contrast Color

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Description

get Best Gray Contrast Color

Demo Code


//package com.java2s;
import android.graphics.Color;

public class Main {
    /**/*from  w w  w . jav a  2s .  c o  m*/
     * @see {http://stackoverflow.com/questions/946544/good-text-foreground-color-for-a-given-background-color} 
     * @param color
     * @return light or dark gray depending on the brightness of the color
     */
    public static int getBestGrayContrast(int color) {
        return isDark(color) ? Color.LTGRAY : Color.DKGRAY;
    }

    public static boolean isDark(int color) {
        int valuedColor = Color.red(color) * 299 + Color.green(color) * 587
                + Color.blue(color) * 114;

        return valuedColor < 186000;
    }
}

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