Not very clearbut looks like Granite .

Hey Loo -- this is Mark at Kohler. The countertops are Blue Lagos stone. Hope this helps!

My client wants to replace the kitchen sink in his brand new house with an apron front sink. I like this one because the cabinet doors below the sink are the same height as the neighbouring cabinets. Most of the other apron sinks I've seen are so deep that they require shorter cabinet doors. Can you share what the style number/name of this sink is? We have a 30" wide cabinet.

Oops, I asked before I looked in more depth. I see the info on the link. Unfortunately it requires minimum cabinet width of 36". I'll keep the info on it for future reference anyway.

Nice to see decorators are using these professional photos for ideas. Kohler has been most gracious too in supplying information on the products in the photo. I know In a previous post Cynthia you disagreed with professionals disclosing that info, but it works in your favour this time.

It looks like a light soapstone

If it's quartz, it looks like Chroma Coastal Gray. There is a Caesarstone equivalent to that too.