I don't have the codes... but since you asked, the first things that came to mind was to take a parhcment sample in and get pain made to match, but to also use a pearl in the paint to better match the parchment's pearlessence? And if you do that I would go with a 100% gloss.

My uppers are body color with a BC/CC and the high gloss looks great... no one has ever commented on the fact that it should be a 60% gloss... and it's much easier to keep looking nice!
http://pg.photos.yahoo.com/ph/brettliukkonen/detail?.dir=34b2&.dnm=df7c.jpg&.src=ph

Just a thought!

Brett - 67 Drop Top 455!