[drcoastline]

A suit and tie in Navy or gray flannel a simple understated tie. No purple stripes, paisley, etc. If the interviewer is casually dressed simply state, I see you are more casual here do you mind if I take off my jacket and tie? The interviewer will see you came to be professional but you can adapt. I don't think you can ever be over dressed as you stand out in a positive way. But you can be undressed and not taken seriously.

A tuxedo will fit in just fine at a beach party. Put a lay around your neck and pick up a corona and your the cool guy. Shorts and flips flops with a boy tie at a formal wedding not so much.

Just my opinion.