Shades of green

Varieties of the color green may differ in hue, chroma (also called saturation or intensity) or lightness (or value, tone, or brightness), or in two or three of these qualities. Variations in value are also called tints and shades, a tint being a green or other hue mixed with white, a shade being mixed with black. A large selection of these various colors is shown below.

The color defined as green in the sRGB color space is approximately the most chromatic green that can be reproduced on an average computer screen, and is the color named green in X11. It is one of the three primary colors used in the sRGB color space along with red and blue. The three additive primaries in the RGB color system are the three colors of light chosen such as to provide the maximum range of colors that are capable of being represented on a computer or television set.

This color is also called regular green. It is at precisely 120 degrees on the HSV color wheel. Its complementary color is magenta.

HTML/CSS uses the name lime for this color, using green to refer to a darker shade. See the chart Color names that clash between X11 and HTML/CSS in the X11 color names article to see those colors which are different in HTML and X11.

The color defined as green in HTML/CSS color standard is the color called green, low green, or medium green in many of the older eight-bit computer palettes.

Another name for this color is green W3C or office green.

The color defined as green in the CMYK color system used in printing, also known as pigment green, is the tone of green that is achieved by mixing process (printer's) cyan and process (printer's) yellow in equal proportions.

The purpose of the CMYK color system is to provide the maximum possible gamut of color reproducible in printing.