The pupils were black as like every other human being's.....

“ The pupils were black as like every other human being's. But at the fringe of the pupils were thin heliotrope rings. Radiating from the rings were mauve and lilac swirls that swam in a plum hue. The cilia of the irises were amet ”

Deepika Kumaaraguru

From : Ethereal: The Dawn of the Blue