Ice water blue from waterworks, but
blue from waterworks, but this may have been discontinued.
We carry Waterworks and Crisp Architects is correct this is the smallest size available however we do also work with a company who makes custom sink legs and washstands and can accommodate a smaller size for you. If you would like more information
all from Waterworks. I apologize for originally mistagging it as Restoration Hardware. Here are the links, the sink is from the Astoria Collection.
check with Waterworks, however I do not believe they come in a size smaller than the one pictured.