For a 100% OEM looking repair the panel needs to be refinished by a quality body shop. Then, depending on how well the body tech and painter are at their jobs, you'll need texture match, cut, and polish the fresh paint to ensure that everything matches the adjacent panels.
An alternative is you can throw several layers of touch up, clear, and then sand/polish until everything is level. Touch up repairs like that never look perfect though. You will always be able to tell that a repair was made there if you look close enough but it on that color it should be invisible from about 5 feet away if repaired carefully.