I got in some Ivy Gold vinyl paint from Classic Industries, made by Original Equipment Reproductions, it's dead nuts on perfect match. Tried three different cans of SEM and it wasn't even close.
In the photo below the top pillar post cover was done in the new OER paint, the lower in SEM. The OER paint was actually labeled Ivy Gold, the SEM was their offering for the Ivy Gold trim code.
It's actually even a better match than it looks, the covers were tilted toward the light and the OEM original door panel beneath was not, from straight above it's a perfect match right down to the sheen. The SEM was almost flat.
Going to order a couple more cans to keep for future use. Still used the SEM adhesion promoter with the new paint, that stuff seems to work very well.
