Keep Smiling 10inch dia Artist's Color Wheel , A Guide to Mixing Color WheelComplementary colors are two colors opposite each other on the color wheel, such as Cranberry and Willow (red and green), and Goldrush and Pacifica (orange and blue). If you notice, one side of the color wheel is made up of warm colors while the other is made up of cool colors. Complementary colors, since they are across from one another, will have one of each. They create a vibrant contrast, making each other pop without being jarring to the eye. 10