Phenomenology of illusory colors: All colors are illusory but some colors are more illusory than others

In this work, through a phenomenological analysis, we studied the perception of the chromatic illusion and illusoriness. The necessary condition for an illusion to occur is the discovery of a mismatchdisagreement between the geometricalphysical domain and the phenomenal one. The illusoriness is instead a phenomenal attribute related to a sense of strangeness, deception, singularity, mendacity and oddity. The main purpose of this work is to study the phenomenology of chromatic illusion vs. illusoriness useful to shed a new light in exploring the no-man land between “sensory” and “cognitive” processes not yet fully explored.