The usual white, gray, or black grout you see in kitchens and bathrooms are fine to use, but they can be a bit boring. White grout with white tile looks clean, but the white grout can quickly turn ...
You don’t need to re-grout your tile to change things up. Instead, use Grout Refresh like @emilyrayna for a big change on a tiny budget.
While the results weren't absolutely jaw-dropping, it's still the best grout cleaner I've used.