The Hunter Lab color space was developed by R. S. Hunter as a more visually uniform color space than the CIE 1931 Yxy color space. Similar to the CIE L^*a^*b^*space, it remains in use in various fields, including the paint industry of the US.

Not all 3nh brand models has this Hunter Lab color space, only NH310 portable colorimeter, NR60CP handheld colorimeter, NS810 spectrophotometer, NS800 spectrophotometer models have.