I think that you need mostly white, but something in a print that incorporates your colors. Perhaps pillow slips or at least a mostly pea green painting/poster/wall-hanging that also has some brown, perhaps in the frame. You could also do a stencil on the pink wall using the green paint, some white, and some brown. How about a nice tree branch? You can also buy vinyl decals from Etsy or other places--not sure that you could get pea green, but brown and white should be available.

Is the chair solid wood or is there any veneer? If it's solid wood, you can strip the old finish off and paint the chair a new color. What is the color scheme in your dining area? What color would you like the chair to be? Christi, on behalf of Thos. Baker

dupe post - go to this linkhttps://www.houzz.com/discussions/remodeling-of-dining-chair-dsvw-vd~1013446

You can go to Joanne fabrics and find a new fabric and re-do the chairs.