A shiny clefairy's color palette changes from a light, peachy pink to a slightly paler pink. A major change is the brown tips of the ears becoming a bright green instead. Its fang, feet, and claws are still a white shade. There doesn't seem to be any particular reference or theme for the recolor.

The name Clefairy seems to be a combination of Clef, as in the musical symbol at the beginning of a staff, and fairy which is a direct reference to its lore and eventually its typing. It's a simple name that spells out what Clefairy is visually.

a pink pokemon with a flower on its head is sitting on a control panel in a room

ALT: a pink pokemon with a flower on its head is sitting on a control panel in a room