Axanthic axolotls lack the red and yellow hues on its skin. As a result, they appear more greyish/purplish in coloring. They lack the "sparkly" trait. Typically they have a "spotted" look unless they unless they are also melanoid. Axanthicism in axolotls is a trait that can be found in several types of morphs. However, it is also considered it's own morph! So cool!