Just match ur template color with Adsense Title color, Bg color text&url color. Its May Increase ur Click on ur ads.
So they say, but with Adsense being so prevalent now and people becoming blind to it, I've found contrasting colors for the title work just as well if not better as they catch the eye.
I typically make the background fit in with my template, and make the titles stick out as much as possible.
Did you see a big jump in clicks when you started doing this? I went from 1% ctr to 2% within a month