White walls would make that wall (headboard wall?) a standout (but perhaps too much so?), a lighter green or blue from the paper would make it cozy. What's the bedding? Did you have inspiration pics to prompt this paper? Have you tried using an app like Color Snap to get the paint colours that match? If you share pics of the room, people might have tips to guide you.

this a picture of the headboard.
----& yes the bed is along the wallpaper wall.

I think Color Snap is by Sherwin-Williams. Benjamin Moore has an app as well.