Looks like a Sample or Gilt bag, in fact, due to the d-rings for strap attachment. Not sure of the color though... maybe Cobalt? or maybe it's a Sample Sale/ Gilt - specific color.
Cobalt is darker, unless the flash is throwing the color off. It looks like pool, except the hardware and tag would be wrong for that I think. It'd be alot easier to tell if we could see the clasps and the kind of tassels it has!
I'm pretty sure the bag is cobalt, which was available in the MAB at sample sales and Gilt, Ideeli, etc. If it is cobalt, RM did not make a MAMM in that color.