I am working on three exterior doors.  The doors are fiberglass and we are painting them to look like a rich mahogany wood.

I have primed and base coated the doors.  In the first picture you can see the front door.  It is slightly different than the other two doors.  The other two are white.  So what I do to make them all look the same is get them the same base coat color.  These are new doors and supposedly ready to paint but I always prime first anyway.  What I do is get the primer tinted to full tint for the base coat color that I am using.  In this case it is a Sherwin-Williams color called Tatami Tan.   The second picture is what all the doors look like base coated.

Ok so now I cant' find the photos.   will have to look tomorrow I am too tired to hunt them down now.