Adsense has color detection?
 

I noticed that on one of my websites a blue advertsement is showing.
This particular page has the dominant color of blue (some streetview javascript, thumbnails and a blue header bar).
Could of course be a coincidence. But I wonder... does Google detect the colors of the page somehow?

haven't noticed that, but it's very possible...

isn't that the default color?

I am not talking about the blue text. They showed a blue picture ad.