Ad sense is an ads generated by Google. We call it CPC. Background color of a website is normally white. Once I tried with black background with white Google Ad sense ads. Main aim was to hide Google Ad-sense arrow mark. Visitors normally understand arrow mark and not very interested to click on it. With this concept I tried with black but I did not had in mind that black is not normally accepted. I left. I started with white background. Response improved than earlier. I have found that people normally attracted with green color ad sense text. I also tried with red color ad-sense text but was not very significant. I also tried with blue ad-sense text. Result was significant. Courtesy: Web Design Gadget