- macOS 10.0+
Three components combine to express a color value defined by the
CMXYZColor type definition in the XYZ color space. Each color component is described by a numeric value defined by the
CMXYZComponent type definition. A component value of type
CMXYZComponent is expressed as a 16-bit value. This is formatted as an unsigned value with 1 bit of integer portion and 15 bits of fractional portion.