“This grout is a bit lighter than we expected. Looks almost white against our grey concrete effect tiles (Ark Silver porcelain wall and floor tiles). Not sure if a darker grout would provide a better match?”
We always recommend our Ultracolor Manhattan (Light Grey) Grout as a substitute for white, as often white can become quite dirty.
Of course, if you wanted the grout the stand out, we would always recommend using a darker colour.
If we can assist with anything further, please let us know.
Regards,
Tile Mountain