The backsplash was created with Dark Naval Blue Grove Brickworks from Waterworks with a cement gray grout. Just enough contrast so the backsplash does not seem solid. The grout also accentuates the texture of the glazed bricks.
I always worry that not enough emphasis is placed on the choice of grout color for either ceramic tile or stone. Grout choice is a key element to affect the final outcome of an installation. And not incidentally, it acts as a moisture barrier so that water does not seep behind the tiles creating a mold situation or damage the ceiling below. So, it is very important that the grout choice not be left to the contractor; it is a choice to be made thoughtfully and long before the tile is installed.