intellect YELLOW secondary FFFF00/255,225,0 intellectnounin·tel·lect | \ ˈin-tə-ˌlekt \Definition of intellect1a: the power of knowing as distinguished from the power to feel and to will : the capacity for knowledgeb: the capacity for rational or intelligent thought especially when highly developed2: a person with great intellectual powers Each color has a corresponding gemstone that is correlative to its philosophical meaning and metaphysical purpose. Atmospheric Air Creative Element