Your eye colour had to have come from somewhere. Sure, there's genetics, but let's find a way follow it that doesn't lean so heavily on science. Let's map out your past three generations through colour.
If you can use a photograph, all the better, but if not, try to run on memory.
Make a five-colour palette using the eye colour of each of your grandparents, each of your parents, and your own, and see if there are any overlapping colours.
Here's what I came up with --