Thanks

welcome to GoY
yes it does indeed look like Vinca. Useful in dark shady areas but can get out of hand.

Thank you. I need something for shade. The “getting out of hand” part worries me though.

It actually looks like Dwarf Periwinkle (Vinca minor) to me. Still a spreader, but not as aggressive.

although a spreader I do find it pulls out quite well. Depends on how much you have.

Klahanie, I'm sorry on two counts! First, when I first read your first answer, I could have sworn that I read Vinca major--obviously not so!
Second, I should have realized that, in the Pacific Northwest of North America, even a slow spreader like Vinca minor could easily cover square kilometers, if left to itself. It's far different in my climate!