A new method is presented that analytically describes the surfaces of color gamuts in a closed form. Extending the method to the whole volume of the gamut, it can be used to analytically represent the relationship between a color space and the space of color control signals of a reproduction device.
Patrick G. Herzog, Bernhard Hill, "A New Approach to the Representation of Color Gamuts" in Proc. IS&T 3rd Color and Imaging Conf., 1995, pp 78 - 81, https://doi.org/10.2352/CIC.1995.3.1.art00020