Color Color Color (American English), or colour (Commonwealth English), is the characteristic of human visual perception described through color "categories", with names such as red, orange, yellow, green, blue, or purple. This perception of color derives from the stimulation of cone cells in the human eye by electromagnetic radiation in the visible spectrum. Color categories and physical specifications of color are associated with objects through the wavelength of the light that is reflected from them. This reflection is governed by the object's physical properties such as light absorption, emission spectra, etc. By defining a color space, colors can be identified numerically
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