I think gray looks good with all wood tones. I've used BM's Revere Pewter on walls and on trim and really like it.

What other colors will be in the room? Is there a color from your sofa fabric that you like? Do you really love gray? it is so overdone nowadays. But if you must have a gray, look at BM Balboa Mist. It is a soft "misty" color

Will be starting with a blank slate so grey is the jumping off point

Please reconsider the gray as a "jumping off point" ,,,there are hundreds of paint colors . But color choice in furniture and fabrics are much more limited, given size, function and pricing considerations. You will be better off in choosing whatever you need for your new furniture,etc, and then choosing a wall color.

We have bm balboa mist in a room adjacent to oak flooring. Planning to do it in the room with oak flooring or maybe the next shade down bm cumulus cloud.