Welcome Batik! I'm sure Red will be replying to your question soon but, if you want an immediate answer, the charms should be predominantly some shade of brown or tan. I judge my choices by standing 5 - 10 feet away from the fabric or group of fabrics, squint my eyes and then name the color I see most. Others may have a different method or methods of determining their selection of fabrics that could be helpful to you. This group has been great to help me along as I grow in my quilting skills and I've learned so much from them.