The eyes of lions are amber-colored. Even white lions, whose fur lacks the usual lion’s pigmentation, have amber eyes, according to the Feline Conservation Federation.
Given that lions are nocturnal, their eyes are adapted for night vision. The anatomical structure of the eye is responsible for the eye shine, or dazzling glow, that is apparent when a light is directed at the eye at night. The exact hue of this eye shine varies depending on the angle from which the lion is viewed. Typically, it has a reddish or golden hue.
A layer of cells found behind the lion’s retinas is responsible for its vibrant eye gleam. The reflecting nature of these cells enables the eyes of the lion to absorb more light, so improving its night vision.