With different site I means different google adsense consultant sites suggest different adsense color units for your site.meaning they say, use some specific colors which are basically important for getting more profit from your adsense.

For example when I had visited a famous adsense consultant website they are saying to use a blue (#0000FF) adsense color  for the title of your adsnese and they are saying it is the best choice for the any adsense units.

But this Google adsense consultant site is also saying that if these blue colors are not increasing your click through rates then they are also saying to use different colors and remove them within in next week. Then use dark blue colors which many site use on their pages.

We can also use the templates for the google adsense units that are already listed inside the google adsense setup pages. As these are provided from google them self  it means these  palettes give more values if we use their predefined colors
You can see in the image below.

We can select the Open air, Seaside, Shadows, Blue Mix, and Graphite palettes, for boosting more users and clicks on the ads.

Also read some related articles:
Best Adsense Colors
Google Adsense Consultant