Black and white is a classic wedding color combo, because it'll never go out of style. Add some red accents, and you'll keep your wedding from being boring.
What's black and white and red all over? Not your wedding. Don't feel like you have to make every accessory in your wedding black, white and red. Use the red as pops of color here and there. Maybe put a red accent on your cake. Use red ribbons to make invitations stand out, or use them to hang flower arrangements from the ceiling or walls in a reception area.
You can also try red as an accent in your aisle runner. Some companies produce customized runners to match your colors. It's a great way to include that particular accent. Put it where guests will least expect it, and they'll remember your wedding for a long time.