Hi Lynn, this is Peggy. Here are some ways to clean them up, but you could also paint the pulls. Hope this is helpful Soak the cabinet pulls in a bucket of warm water mixed with a mild dish detergent. Let the pulls soak for five to 10 minutes before using a toothbrush to gently scrub each pull, making sure all grease and grit are removed.
How to Refinish Metal Cabinet Pulls | Home Guides | SF Gate
You could remove them and spray paint them
Give them a scrub then spray paint them!