I am using the penny tiles on the floor for a bathroom Reno. The cabinetry is a light gray. The tile around the bathroom is the color of the chair rail tile and the accent tile is the harlequin tiles. I want the floor to look more of a uniform color so should I go with a dark blue grout of more do a dark gray grout? Not sure and it's scary to make such a. Huge mistake. Any insight would be appreciated.