can i paint my car door panles a differnt color?

make sure the surface is clean, finger prints, armor all anything that is greasy paint will not stick to it. I found that pretty much any spray paint, cheap or expensive worked just fine, and held up great, I used a all pourpose cleaner to remove any contaminants and dirt, and removed them from the truck to spray paint them (spray paint is not a good plan while the door panels are still on the doors) beyond that do what ever makes you happy, Mine came out great, and people who had been in the truck were surprised at how good it came out, and that wal marts 1,09 a can did such a good job.

Yes you can. You'll want to use a paint that will work on plastic. Most auto parts stores can help you with that. Then type into your browser "how to paint car interior" and get some instructions.

Vinyl paint, available in aerosol (Spray can)

Interior or exterior panels?