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) the route by which quantities of oranges were brought from southern ports such as Marseilles to northern France. The family of the Prince of Orange eventually adopted the name and the colour orange in the 1570s. The colour came to be associated with Protestantism, due to participation by the House of Orange on the Protestant side in the French Wars of Religion. One member of the house, William I of Orange, organised the Dutch resistance against Spain, a war that lasted for eighty years, until the Netherlands won its independence. The House's arguably most prominent member, William III of Orange,