Artists' pigment purple (red-violet)

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This red-violet color, called artist's purple by artists, is the pigment color that would be on a pigment color color wheel between pigment violet and pigment (process) magenta. In the Munsell color system, this color at its maximum chroma of 12 is called Red-Purple, or more specifically Munsell 5RP. Artists' pigments and colored pencils labeled as purple are typically colored this red-violet color. On an RYB color wheel, red-violet is the color between red and violet.

Source: Red-violet on Wikipedia