When matching blue and orange, consider using them in complementary ways. Blue is a cool color and orange is a warm color, so pairing them can create a dynamic and energetic look. To achieve a harmonious combination, try using one color as the dominant one while the other is used in smaller doses or as accents. For example, a blue dress with orange accessories or an orange sofa with blue throw pillows. It's also effective to use different shades of blue and orange to create a more cohesive look.