 She appeals, with Kingdom, to recent research on color vision, relied to the function of color vision, to argue that it provides great difficulties for Objectivist color realism—both Primitivist and Reductionist Physicalist—(see also Akins &amp; Hahn 2014). While they admit that anti-realism, especially the form favored by Hardin, is in a better position, they think that Color Adverbialism presents the best explanation.