
Blue, green, brown, or something in between - the science of eye colour explained
Published on: Sept. 15, 2025, 11:41 a.m. | Source: Devdiscourse
Hazel eyes add even more diversity, often appearing to shift between green and brown depending on the light.So, what lies behind these differences As pigment gradually builds up over the first few years of life, those blue eyes may shift to green or brown.In adulthood, eye colour tends to be more stable, though small changes in appearance are common depending on lighting, clothing, or pupil size.