In chromatology, the three elements of hue, lightness and saturation are used to describe colors. Hue, also called hue, refers to the distinguishing characteristics of red, Оранжево, жълто, Зелено, cyan, Синьо, и лилаво. The hue depends on the selective absorption of visible light by the gem. Brightness, also known as brightness or hue, is the […]
