Do you have a picture of a specific lamp ? There are lots of lamps that could work on a farm house setting.
Farmhouse would be neutral colors - I would paint the base white and use burlap or flour sack cloth for the shade.
Teresa: maybe this will help
Scroll down to #11 it is a farmhouse style laundry room lamp:
This is a tutorial on how to make a farmhouse-style lamp: https://www.hometalk.com/44256704/farmhouse-lamps