The correct interior color would be id'd on the body tag on the firewall. I believe a "2" would be black i.e. Usually convertible tops, vinyl tops and interior color were all the same color for each car. If you had blue, than all of the mentioned would the same color blue. The color fades and you that might be what you're comparing/seeing. If you ordered all new, than the tone of the blue should be very close, although I'm sure you will see a slight difference between plastic and vinyl components.