Bring paper to paint store and they will color match it for you.

Be aware this paper is available from a variety of sources, this first one at about $60 per roll compared to Ballard Designs.

What are you papering with this paper? Where is it going?: ) Are you looking for wall, trim? etc? You're using it as a feature wall, papering an entire room?

Yes, the field white can be matched at any paint store....especially a Ben Moore . More context in your question would get you even better advice, here. Bonus if you add pictures: )

How have you decided to proceed?

And another lost OP really why ask a question if you don't need the answer and waste other peoples time trying to answer. In 7 days you must have had a few moments to answer .

I know the paint match for the wallpaper. But, it seems you have left the building.