while purple could be seen as blue. Cats may not see as many colors as humans but have better light perception. Cats will adjust their eyes during the day, allowing less light to filter in ...

Most Persians have gorgeous blue eyes but there can be exceptions ... as you can see there are many beautiful grey cat breeds. These cats may be light grey, white and grey, grey and black ...

Now scientists have harnessed the Internet’s abundant wild cat photographs to chart the transition from brown eyes to colors such as green and blue—and found something of a gray area.