How to make checkbox without background programmatically?

I'm newly on android development so i need the help from the experts here I make my checkbox change it's background color to red upon specific condition, and i need to rerun it's background to the original one,, i used this but it gives me an error , so what's the correct code for that ? I tried a lot of things but nothing help me in my problem !

 Female.setBackgroundColor(Color.parseColor("@null"));
 Male.setBackgroundColor(Color.parseColor("@null"));