Color/design choices are very personal. It's important to order what you like the best. That said, yes: silver and tan would be a very strange combination. In general, tan looks good with solid colors (black, white, red, blue, green, navy). Silver will look much better with black or gray interior (in my opinion).
Personally I don't like the Tesla tan interior at all as only a very limited amount of the interior is covered in tan leather and the rest is black.