A balance of playful yellow and passionate red, orange commands attention without overwhelming. This often flamboyant color brings to mind citrus and sunsets, fall leaves, and jack-o'-lanterns. Orange has even been found to stimulate appetite and creativity in humans.
Here, patterns etched in sandstone appear like an artist’s rendering of the Utah landscape. Dramatic sandstone formations are the main attraction at the state’s Arches National Park.
(For more pictures of the amazing colors of our world, buy the National Geographic book Life in Color.)