Thank you, pretty sure it’s an easy one!

Just moved and these are in the front yard. Looking to get some more to finish the landscaping. My wife thinks they are a kind of lilac, I think they are something different.

They were still blooming last September when we moved in and the flower shape made me think they are not lilac. But since they might be a dwarf variety of some sort, I don’t know. Just another piece of info, they are in mostly shade and bloom heavily.