There is a plate by the hood latch, I believe, that has the color code for the ext. paint and who knows, perhaps the interior? Your VIN number can probably be deciphered by the dealer parts shop in order to get a color NAME.
good luck.

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1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
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1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD