While shopping I ran across a Gulf Blue 67 S with beige interior, with the Kardex included to show that's how it was ordered. As with Rolls-Royces, there are always some Porsches out there to make you think that may the custom-order option isn't always a good idea.
The worst Porsche I've ever seen was a late-model turbo, ordered by some pro athlete in his team colors, greenish-blue paint with orange all-leather interior. The car was being sold because the player had been traded to another team.
Personally, I like Gulf Orange and Signal Orange on early cars, but some of the
yellows are nice as well. The car in the link is Bahama Yellow.
Emanuel