1. orange is the long wave in the visible part of electromagnetic wave, and the wavelength is about 590~6 10nm. The middle tone between red and yellow. Also called orange or orange. Orange is a bright and lively color and the warmest color in the warm color system.
2. In nature, oranges, corn, flowers and fruits, glow, lights and the sun are all rich in orange. Because of its bright, gorgeous, healthy, exciting, warm, happy, brilliant and easily moved color feeling, it likes to be used as decorative color.