80 HD quality images / photos of yellow wallpaper background. Images include autumn nature scene, fish, yellow rose, tulips, flowers, ducklings. Hope the sunny yellow color brightens up your phone. Yellow in general is a happy color, like the energy of a bright sunny day. It is the color of optimism and enlightenment. It energizes, relieves depression, improves memory and stimulates appetite. Put on some yellow to help you to gain clarity in decision making, as a relief from fatigue, panic, ne