The plant in your had is tall fescue. Tall fescue leaf blade is ridged on one side and smooth on the other and new leaves are rolled. You probably have kentucky bluegrass mixed in as well. The leaf blade is not as wide as tall fescue and smooth on both sides, also new leaves are folded.

Was the lawn dark green all winter? If so then it's fescue.

Was it entire brown all winter? If so then it is KBG.

Was the lawn a mix of dark green and brown? If so you have a mix of the two.

It sure looks nice whatever it is!

Thanks for the responses.

Use this:

Here is a link that might be useful: ID tool