I don't believe it exists. Even if they made something available, it wouldn't match since the paint process itself is a multistage process. It's similar to BBS's diamond black or the common Hyperblack finishes offered by aftermarket wheel manufacturers.
Your best bet is to find a wheel repair shop to match and repaint it for you. For optimal results, get all 4 wheels repainted because there is no guarantee that the repaired wheel's finish will match the other three.
It is a color that requires a multistage painting process.
I've called BBS about it before with regards to the paint, and they confirmed that it was a multi-stage process with a black base color and layers of silver on top.
WheelsAmerica offers wheels refinishing in Hyperblack with very similar results. But since each Wheels America location is independently operated, your results may vary.
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