Picture quiz - do you know what this is?

In the link below there are some woodland tulips. In the foreground there is another, low-growing blue/purple flower. Can anyone tell me what it is? Cheers.

http://www.bluestoneperennials.com/b/bp/BTUWO.html

Dan

 

It is aneneme blanda, they come in blue pink and white

 

many thanks joyce