Silverstone is slightly blue, not quite as blue as Blue Watter, but more blue than TiAg! To me that picture looks like Silverstone, but photos can be very deceiving.
Simple solution is to look inside the engine bay, on the right side (from the front) is the color code sticker, it will say what color it is.
2003 M5, Carbon Black, Nav, Intravee II with Ipod + MP3 CD Changer + DAB + MD Changer, TV, Bluetooth Phone, the works.
2013 M6 Gran Coupe, Sakhir Orange, Competition Pack, Ceramic Brakes and lots of other options