Somewhere during your grown-up years, chances are you'll have the opportunity to attend some sort of networking event. And, while you could go with the resume tee, in some professions that might not go over all that well -- you need to find a more polished, professional look.
However, before you throw on your trusty old suit, think about the message you want to send. Just as the type of attire you choose (suit, dress, etc.) says something about you, the color you choose sends a message to prospective contacts and employers. Check out the gallery to see what impression different colors make.