Avoid overly bright colors and garish patterns and you're fine.
Dentistry Interview: Ties to match my dark blue suit? - Page 2
Yeah, it is darker. If I find a better tie in the next few days, I will definitely exchange it for something with more contrast.
This is my fifth interview so I am not worried about it at all. I just want to put together a decent outfit, whether it affects the interview or not. :)