Try Walker Zanger in the Gramercy Park line, color is Bone China. Has a crackle finish. Gorgeous. Do a search on this forum and see photos. I narrowed my selection down to that or Ann Sacks Basic line --Carpaccio or Capriccio, cannot remember the spelling now. I ended up choosing 2x4 marble; it suited my kitchen better, but it was a hard decision.

Solistone has a white 3x6 subway in a color called Nieve that looked creamy but not yellowy to me in the showroom:
solistone mission tile

ADEX makes a tile in 3 X 6, and 2 X 4 on mesh. Very good quality and their biscuit cololr is a gorgeous creamy white. Many other sizes, decorative and trim pieces too to match. Also, Crossville just came out with a 2 X 4 honed marble subway tile that creamy in color with some gray and touches of beige in it. I'm going to use that as it's stunning. They say it's Carerra, but the background is a cream white and not greyish. List is only $18 a sf. and it's discounted. Below is a link. Looks more creamy white and grey in person.

Here is a link that might be useful: {{!gwi}}

Here's another vote for Walker Zanger Gramercy Park Line in Bone China. It's what I am using. I dropped and broke the sample of the bead trim that I am using with it, so I can not tell you the sctual name, but it is a full circle, not oval, bead, each about one half inch wide It is also part of Gramercy Park Line as it has the same crackling on the side.

Thanks for all the recommendations so far!! I will go check these out tomorrow...