Can't find matching paint!

I want to match my existing paint, which is not factory, to paint a new hood with a hood scoop. How hard can it be? I used to sell PPG and went to a PPG dealer with a Prophet color match camera. Worked it up - no match at all. Couldn't believe it. Went to a Dupont paint supplier and used their color match camera and it came up with a match that was way too dark. I know the paint is not Sublime. It is lighter than that. Anyone have any ideas on where to go, what to try, or can look at my pic and tell me?

View attachment Dart 1 resized.jpg

View attachment New wheels.jpg