You'll have much better luck taking your photos to a couple of your local landscape supply shops.
Looks like a McNear gray slatestone series or a Belgard product.

...or an EP Henry Coventry, or any number of others, which is why I 100% agree with deviant-deziner on going to suppliers with the pics. Also bring measurements of the actual pavers with you. Maybe it's just the angle of the pic but the little "Twinkie" piece looks like an unusual size for a pattern, that may be the clue right there.

It looks like common grey with charcoal being used as an edge band ... colors that are common to all, if not the vast majority of manufacturers. Of course, there will be slight color variation from different batches. (Be sure you are checking manufacturers and distributors, not Lowe's and Home Depot.)