Can apple tell if my iphone 4s was originally black?

Ok so I bought a broken iphone 4s from my brothers friend for cheap. So I paid a company to fix the screen and changed it to a white front and back. Since apple wanted 200. But my battery is having issues and I paid to extend my warranty. But then I forgot my iphone is white when its supposed to be black. I just typed my serial in apple site and it doesn't say anything about the color. So will apple know if my phone was originally black even though it looks normal. I'm just bummed because I just paid to extend my warranty.

Yes the serial number will say what color it is in the apple data base.
ill trade my black one for your white one.email me