Ripple Color API 21

The ripple animation is shown when user presses clickable views.

You can use the same ripple color used by your app assigning the ?android:colorControlHighlight in your views. You can customize this color by changing the android:colorControlHighlight attribute in your theme:

This effect color can be changed:

<style name="AppTheme" parent="Theme.AppCompat">
    <item name="android:colorControlHighlight">@color/my_color</item>
</style>

Or, if you are using a Material Theme:

<style name="AppTheme" parent="android:Theme.Material.Light">
    <item name="android:colorControlHighlight">@color/your_custom_color</item>
</style>