Hazel eyes like mine are about what you say, instead of having the code for blue eyes or green being homogenous across the iris you get a hodgepodge of green coded iris cells and brown coded iris cells equally interspersed across the whole iris in varying degrees, sometimes hazel eyes appear close to blue or green while others appear close to brown or amber. In many people with Hazel eyes you get different shades and different colors. My eyes for instance are green and blue with a gray backwash and one brown/black spot. There isnt any real genetic study to explain hazel eyes out there.
The girl who plays Lana Lang on “Smallville” is supposed to be half Chinese and half Dutch, yet her eyes are dark, sort of olive green. If I remember my old biology both of her parents would have to have some light eyed genes. I am not certain tho. Is it possible for a full blooded Chinese to have a green eyed child?
Yeah, I always put down brown for my eye color but there are actually several colors depending on the lighting.