I can't be sure but it looks a lot like Oceanside Glasstile's Elevation Collection. Possibly the Freehand Liner in the color Color. The piece is thicker which creates a deeper version of the color shown below.

Hello Kreature. Stephanie nailed it! Yes it is Oceanside Class tile. The back splash is 12x24 porcelain tile!

Oceanside Glasstile featured this on their facebook page yesterday. It turned out to be a veeeeeery popular design. :) Excellent design work @Remodel Works Bath & Kitchen.

What is porcelain 12x24 called? It looks great!

The 12x24 porcelain tile is called Metal Wood Iridio by Arizona Tile!