Blue eyes get their color the same way water and the sky get their blue color. They scatter light so that more blue light reflects back out.
People with blue eyes have no pigment at all in the stroma, causing the fibers to scatter and absorb some of the longer wavelengths of light that come in. More blue light gets back out and the eyes appear to be blue.
I have green eyes, im rare yeee. My gf has hazel eyes.
Black eyes: Lie still and wait for the alien abduction to end.
I don’t think I’ve ever seen someone with silver/grey eyes. That would be interesting to see.
I have a combination of green/gray/blue. I’ll see if I can take a photo later.
Odds are you have met someone with it, but the eye color shifts depending on what colors are around them.
hint: it’s also blue
I knew someone in high school. It is actually much more vivid than you would expect. Silver almost seems more appropriate than just grey.