Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Red-violet is a rich color of high medium saturation about 3/4 of the way between red and magenta, closer to magenta than to red. It is classified in color theory as one of the purple colors a non-spectral color between red and violet. Both its saturation and brightness falling short of 100 %, red-violet is not a pure chroma. There is a color of similar hue that, however, that comes close to being a pure chroma: process magenta. The pure chroma color composed of equal parts of magenta and red is called rose. In the usage of artists, red-violet is equivalent to purple. However, although the color "purple" is inaccurately used by many people as a synonym for violet or a color close to violet, professional artists generally use the term "purple" to specifically refer to a pigment color that is equivalent to red-violet in order to give themselves a larger and more balanced palette of pigments to work with.