When it comes to accent chairs, you don't necessarily need to match your sofa. Mixing and matching styles can create an interesting look that is still cohesive if done correctly. Consider creating contrast with different fabrics and patterns, or pairing them with solids for balance. Keep the scale of the elements similar—for instance, if you have a large couch, then opt for larger accent chairs or vice versa. With a bit of imagination, you could come up with a completely unique design that brings visual appeal and character to your living room.