If it has a square stem, my guess would be henbit. Lamium amplexicaule. It is dainty and pretty, but considered a weed.

Maybe Lobelia puberula or similar.

It would be helpful to know where and when it was photographed.

I can't tell if that's smaller lawn grass or a taller something. Are the flowers miniscule, or just regular-small?

Can't see the little blooms clearly but made me think of Trichostema.

The grass is fairly tall behind it,the plant itself was about 1ft tall, maybe a little taller. Here is a closer picture of the flowers. They are pretty small.

I'd investigate the other suggestons, Trichostema (the species I ID'd) flowers would have a little curl coming out, hence the common name 'blue curls.'