are there 3 petals/flower? it may be a tradescantia.

I would think it is a Tradescantia which come in several different colours, other may come up with something different.

It isn't very clear but I would say Tradescantia too.

It is a Tradescantia, Loosestrife, a.k.a. Spiderwort. The flower you photographed is slightly abnormal, though, something like a four-leaved clover!

Thank You All! The unusual thing about this plant is that all the flowers have four petals and not three. A mutation perhaps.

oh you have added individual flower photo. Yes that is unusual they normally have 3 petals etc.
at least you have a name for it now. ;o)

Mines are blue. Could color be related to Ph or is it a different species?

About 80% genetics, and 20% pH, Bathgate. When I grew it years ago, the variety was supposed to be sky blue, and came out amethyst purple, instead, in my 8.7 pH soil. Not as much difference as a Hydrangea would show, but more difference than a bearded Iris.
That group of hybrids come in a number of different colors in the white-pink-purple-blue range, so the genetic component appears to be fairly strong. When I was in college in the late 70's, they used to use the blue varieties to assess chemicals for mutagenic properties: they would apply the chemical, and later examine the flowers under a microscope, counting up the cells that had turned from blue to pink.