I recall a recent thread here where someone posted a picture of their white tile with the light grey grout and it looked fabulous. Maybe someone will remember the name of the thread?

One thing to consider with contrasting grout is that it will show mistakes more than a matching grout. A light contrast should be fine, though, and if you have a good installer, you'll have no worries.

Oh, I would love if anyone could remember that post. What "mistakes" will stand out more? mistakes installing the tile or mistakes with the grout? I am fairly confident with our installer.

I found it ... I'll try to post the link. Scroll down and you will see a close-up pic of white subway tile with light grey grout. Lovely, IMO.

By mistakes, I mean uneven uneven tiles or uneven spacing ... dark contrasting grouts tend to highlight those things. But with a decent installer and the light grey grout, you'll be fine.

Here is a link that might be useful: Tiles going in tomorrow; should I change grout?

Oh man, that looks great!!! Thank you so much for finding that, we are sold. I will update with pictures when it is done.

My tile installer made me mini sample boards with different grout colors the morning of installation. They were all shades of white but extremely helpful.

No problem! Good luck today!