Android : Android - Button set on TouchDown Color

I have a button and typically when I click it this light blue color comes up around the button to show that you are touching down on it. How can I change this color?

I also want to change the default background color of this button which I do programmatically like this:

button.setBackgroundColor(Color.RED);

And when I do this I know it won't change the touchdown color which is what I am trying to do, but it makes the light blue color on touchdown go away which confuses me?

But my question is how to I change the touch down color?

Thanks for the help!! :)