I got auto paint on my tan-colored wall, I don't know what to use to take it out, can anyone help?

I doubt anything is going to remove it. If you have any of the tan paint left, you might try covering it. If this doesn't work, I suppose the next step would be to prime the spot, then apply tan paint over the primer. If you don't have any of the tan paint left, you can try to match it, but I don't think you would be happy with the outcome if you try to paint less than the entire wall. Depending on your lighting, room contents, etc, this may or may not prove satisfactory. In any case, looks like you've probably got a weekend project on your hands. Would adding a piece of furniture or fabric of some sort not be an option?