To blend a paint repair on your car, I recommend you Polish and wax your car and if that does not work, give it some time and repeat. Over time, the sun will change the color of the paint.
It really depends on the type of paint you use for starters, but assuming it's typical car paint with no gloss or texturing you can safely mix the paint together in a spray gun. You'll need to check some previous blends for reference but it's a pretty strait forward process.
The professional way to blend a paint repair is to spray a clear base over the repaired area as well as the ares adjacent to it then spray a progressive thin pain coat on top until even. Go full color on the first coat but the additional coats by half with clear on every additional coat.
To learn how to blend in paint repair you should look online or buy a painting handbook. It is kind of a complicated process. A lot of painter start by laying clear over the adjacent panels. This is followed by a normal top coat. The paint is reduced by half for the reaming coats as you blend further into panels.
I recommend you get a hold of a air brush. The ones used for model cars etc.. You are going to lightly paint the damaged area blending as you reach the outer edges. Keep doing so until you match the origanal paint of your car. You should try to purcase the same brand auto paint.
Bodywork is much harder than it looks. I recommend having any body repair and paint done by a professional. You'll spend less money and get better results.
you push the paint in to the car with force with such force that no mat what you do it will not come off and the blending should be done professionially
I hate to tell you this but you dropped blend new and faded paint. Once the paint is faded, the only thing you can do is repaint the whole car or have one spot look different from the old parts of the car. I am sorry to be the bearer of bad news.
Sand, prime, paint, sand, prime paint and repeat, the key is to vary the pressure on the edge, sand it lightly it would be perfect but the point is to avoid a dramatic change.
If you need to make the paint lighter, use a lighter color, such as white to make the color slightly lighter. Do this slowly and compare constantly to the color your trying to match.
