Is it in the middle of lawn grass? Trying to figure out the scale of the flower (how big it is).

It is quite small, a few inches tall. Yes it is in the middle of a lawn.

Ajuga?

Trifolium hybridum?

Here is a link that might be useful: alsike clover

I think it may be Alysicarpus vaginalis, Alice clover, white moneywort.

Here is a link that might be useful: Alysicarpus vaginalis, Alice clover

Thank you everyone for your help. I believe it is indiofera spicata. Does anyone agree?

Here is a link that might be useful: Indigofera spicata

Works for me.