Can someone identify this plant please?

[Pipbin]

I know it's a common one but I've got no idea what it is.

Are they lobelia maybe

Aubretia

Not lobelia, but thank you.

I think that's the one Tentacles.
I want to get some for my garden where I have a sloping rocky flower bed.

and they come in a wide range of shades :

www.gardenseeker.com/perennials/aubrieta.html

Aubrieta and a lovely cat!