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
Orange (colour) orange is named after the appearance of the ripe orange fruit. The word comes from the Old French "orange", from the old term for the fruit, "pomme d'orange". The French word, in turn, comes from the Italian "arancia", based on Arabic "nāranj", derived from the Sanskrit "naranga". The first recorded use of "orange" as a colour name in English was in 1512, in a will now filed with the Public Record Office. Prior to this word being introduced to the English-speaking world, "saffron" already existed in the English language. "Crog" also referred to the saffron colour, so that orange was