Jennifer Aniston eye color

Jennifer Aniston's natural eye color is brown, though she is widely known for her striking blue eyes, which she achieves through the use of colored contact lenses (source, source). This transformation has become such a signature part of her look that many people assume her eyes are naturally blue.

The Contact Lens Choice

The actress regularly opts for blue contact lenses that perfectly complement her blonde-brown hair, creating her iconic "California blonde" appearance (source, source). These azure-colored lenses have become such a permanent fixture in her public appearances that they've essentially become part of her trademark image.

Professional Motivation

Her decision to wear colored contacts wasn't purely aesthetic. There are suggestions that she began wearing blue contacts partly because glasses could be a barrier to securing acting roles in television and movies (source). This choice has proven successful, as her blue-eyed look has become synonymous with her public persona, particularly during her time on "Friends" and throughout her film career.

Color Versatility

Interestingly, Aniston occasionally experiments with different eye colors. She has been known to switch between blue and green contacts, adjusting the shade depending on her hair color at the time (source). This versatility allows her to maintain her signature look while adapting to different styling needs for various roles and appearances.