ColorConvert
[c, colspace]Valid values for colspace are:
CMYK: convert to CMYKColor
Grayscale: convert to GrayLevel
HSB: convert to Hue
LAB: concert to LABColor
LCH: convert to LCHColor
LUV: convert to LUVColor
RGB: convert to RGBColor
XYZ: convert to XYZColor