1. Choose a lighter shade from the same color family, and use the darker color that you love as an accent color.
2. Have your Maid of Honor wear the darker color to set her apart.
3. Choose a bright color to use as an accent to 'lighten' the feel of the whole color scheme.
The point, ladies and gentlemen, is that it is YOUR wedding, and what you want is what you get. As long as it's done with care and it's well thought out, no one will give a second thought to the colors.