What your best Colour for Text Ads..?

[egoldzone]

Dear friends

I have been place adsense code at my site
My favorite colour "ink" or Dark background
with yellow, green or white text....

Some times i made $15 a day...
Look my sample adsense code with Dark Colour

http://egoldzone.webng.com
http://freefxclub.com/tradingcontest.html

What your opinion...

Any body can help me to incrase traffic and earning..?