We present an optimization technique to find hue constant RGB sensors. The hue representation is based on a log RGB opponent color space that is invariant to brightness and gamma. While modeling the visual response did not derive the opponent space, the hue definition is similar to the ones found in CIE Lab and IPT. Finding hue constant RGB sensors through this optimization might be applicable in color engineering applications such as finding RGB sensors for color image encodings.
Graham D. Finlayson, Sabine Süsstrunk, "Optimization for Hue Constant RGB Sensors" in Proc. IS&T 10th Color and Imaging Conf., 2002, pp 343 - 348, https://doi.org/10.2352/CIC.2002.10.1.art00063