I'm kind of slow so it's hard to follow your explanation about the beadboard so I'll just tell you what I did with beadboard and moldings that are cream or white.
We have white baseboards and moldings throughout the house. Straight white, no fancy names. Then on the beadboards in all the rooms it is also straight white. I know we're boring.
As you know my kitchen cabinets are a cream, however, the doors and molding on the laundry and pantry doors is white as is the baseboard. If I had beadboard in my kitchen I would have it white to match the baseboards and other door moldings. I think beadboard should be considered "trim" and should match the baseboards, door casings, etc. I hope I've been a help even though I took the long road to explain it.
Here's another shot of my kitchen to show the laundry and pantry doors.
Q