Also, you can eventually invest in something like Electric Quilt and put the colors on the quilt of your dreams, change them around and get an idea of what they will look like.
I've done it all--saved pictures from here, things I've seen in books, tried to make specific quilts for certain people in colors they love, etc. Sometimes the colors don't say "wow" but sometimes they do. But if you've never studied the color wheel or learned about color at all, follow the advice given here and take some time to learn about color and what looks good together, etc.