It looks like a blue version of Anemone nemorosa, but the number of petals are twice as many as the Nemorosa. However I think it is an Anemone.
The equipment used for the pictures are:
Nikon D700 with Hoodman angleviewer, Sigma 150mm Macro
Tripod, diffuser to create shade
ISO200, f/5.6 - 7.1, manual focus