What color should i spray paint my steel rims

Don’t

Do a cheap one layer carbon fiber wrap, you’ll trick everyone haha

Dark blue?

Im weird i know

Black or dark midnight blue

Mouse grey

Just paint them gloss black and if you want get the chrome cop centre caps

steel colour

I would do a matte/satin red. Use rust-oleum protective enamel paint. Its good paint if you can’t afford powdercoating.