如何确定View的背景颜色？

I'm trying to get the colour values of my background. The background colour of my application is set to randomise on a button press, but I want to be able to then get the values of that colour in the background and determine what colour that is. This is what I got from my research but whenever I print the results to the console I just get 0s. Any help is really appreciated! I'm trying to get the colour values of my backg