It would have been called mushroom in Europe, either creme beige or parchment in the U.S. There should be an interior color code on the data plate in front of the radiator. But your screwed anyway since the dash never quite matches the seats and the suns fades it, etc. It's going to be either SEM Light Buckskin or Santa Fe - you just have to give them a try. SEM will send you a Color Coat color chart if you contact them - should be
www.SEMproducts.com