Is it possible to paint concrete pavers
Rather than using paint, look at some of the dozens of dry concrete dyes. There are several methods to color concrete after it has cured. Acid wash is very effective.  Check out this web site:  http://www.concretenetwork.com/concrete/walkways/existingdecorativeconcretewalkways.html

There are also several other sites you can look at including Lowes, HD, and Sherwin Williams. 

Concrete floor paints are easy and quick, but may require more maintenance and refinishing over time as compared to a stains. If your area is small and not subject to lots of traffic, paint may be a good choice.