Python module to manipulate color information easily (Python 3)

 GrapeFruit is a pure Python module that lets you easily manipulate and convert
 color information. Its primary goal is to be natural and flexible.
 .
 The following color systems are supported by GrapeFruit:
   * RGB (sRGB)
   * HSL
   * HSV
   * YIQ
   * YUV
   * CIE-XYZ
   * CIE-LAB (with the illuminant you want)
   * CMY
   * CMYK
   * HTML/CSS color definition (#RRGGBB, #RGB or the X11 color name)
   * RYB (artistic color wheel)
 .
 This package provides the Python3 version.