Color it is viewed, may alter its perception considerably; for example, a low-intensity orange-yellow is brown, and a low-intensity yellow-green is olive green. The color of an object depends on both the physics of the object in its environment and the characteristics of the perceiving eye and brain. Physically, objects can be said to have the color of the light leaving their surfaces, which normally depends on the spectrum of the incident illumination and the reflectance properties of the surface, as well as potentially on the angles of illumination and viewing. Some objects not only reflect light, but also transmit light
The Color Orange using an orange hat, camera bag, tie, pen, paper, dress, suit, bag, etc. The Color Orange organization described it as this: "The strict censorship can ban the use of obvious symbols of human rights, but the use of The Color Orange cannot be banned." The Color Orange organization decided to paint the "Pillar of Shame" which has become a renowned memorial of the Tiananmen Massacre orange, to protest against the violation of human rights in China. The Danish artist Jens Galschiot and his staff took a flight to Hong Kong in order to paint the "Pillar of Shame" orange. As