Are you referring to the white of the table and chairs? If so, I believe the client purchased that set from Pottery Barn. I looked on their website, but did not see it, so maybe it is discontinued. I found a similar set on the Crate & Barrel site.

What is the color on the cabinets? It looks exactly like what I'm trying to do in my kitchen :)

The cabinetry is Crystal Cabinet Work's "Sage". It is a very pale green.