Moss green is a type of green. Authors of web pages have a variety of options available for specifying colors for elements of web documents. ... The RGB color model utilizes the additive model in which red, green, and blue light are combined in various ways to create other colors. ... Cyan, magenta, yellow, and key (black) CMYK (or sometimes YMCK) is a subtractive color model used in color printing. ... The hue saturation value (HSV) model defines a color space in terms of three constituent components: HSV color space as a color wheel Hue, the color type (such as red, blue, or yellow): Ranges from 0-360 (but normalized to 0-100% in some applications) Saturation, the vibrancy of the...