Yes, these are Primula vulgaris subspecies sibthorpii, and some good forms. The variation in colour is typical of many wild populations, for instance on Vermion in northern Greece. However, this form will not be native in France, and must be the result of an introduction, perhaps from a garden. Often pink colours in P. vulgaris comes from hybridisation with nearby garden P. x polyantha, but there is no suggestion of this here. I am showing one of the better forms of sibthorpii in my own garden which is very like the nearest one in your photo. I am told forms like this can be found in the Crimea.
