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
Orange (heraldry) (red) and dots (yellow). A color used for orange in armorials should be distinct from both Gules (red) and Or (yellow), but also from Tenné (light brown) and carnation (flesh-colour). Orange (heraldry) In heraldry, orange is a rarely used tincture except in Catalan, South African, and American Military heraldries. Unless in English heraldry, Orange is not to be confused with tenné ("tanné"), which depicts the color of tanned leather and then slowly became a tincture of its own, along with carnation used for white human skin. Orange didn't receive a hatching pattern during medieval and renaissance times, and first was