Hi, I have had this outdoor table made with those tiles and I love it, I have been looking for something similar for my kitchen backsplash too, I finally found something that is very similar to the zellige without the rustic terracotta bits in them, they are 100x100 which I wanted the zellige are bigger. I found them at Craft Decor after searching many tile shops, they are called Mien Blanc non rectified, they are not bright white, they have a slightly grey colour, which will make a nice contrast, and high gloss. They don’t come in pure whiteI am having them done on 1 April so I can’t show you. But here’s a photo of my table which my kitchen over looks.

I doubt we can help, as they could be any shade. I wouldn’t go lighter than your cupboards

Photos would help