The term 'hazel' means:

1. light reddish-brown or yellowish-brown
2. greenish-gray or greenish-brown, often with flecks of a third color: said of eyes.

(http://www.yourdictionary.com/hazel)

Being partially colour-blind, I have no chance when it comes to mixed colours. I have no idea what the difference is between dark blonde and light brown. I don't know what green-blue really is. Pink and orange look very similar. I no longer see red as red, more as orange.

(The colours I put above are from a mad-guess. Or from good knowledge of the colour spectrum, probably from the days I could see colour. Aka; before 13 years old.)

Hmm. I thought hazel was classified as light brown. With no mix. Apparently green-hazel is the colour involving a mixture of greens and browns. Since hazel is the colour derived from the word (and object) the hazelnut, many think it ridiculous that it could involve blue hues. However, since the invention of amber as a category, maybe the eye colour classification has changed.

I've always wanted to know what colour mine are. Many confuse naturally coexisting brown and green in green-hazel to be heterochromia. Again, brown in a blue iris is confused as hazel. Mine are blue-grey with brown central heterochromia, leading to green-ish eyes if it isn't a sunny day.

What is classified as hazel?

http://en.wikipedia.org/wiki/File:Eye_big.JPG

or this:

http://en.wikipedia.org/wiki/File:Hazel_Eye_-2.JPG

Classed as 'pure hazel' the colour of a hazelnut, I suppose:

http://www.contactlenses.co.za/storage/images/Contact_lenses,_coloured_contact_lenses,_FRESHLOOK_ONE_DAY_PURE_HAZEL.jpg

This is more or less the same as mine (my eye wouldn't appear/be linked to, so I found a picture alike to it):

http://media.onsugar.com/files/ons/211/2115360/40_2008/__eye_02_copy_0.jpg

It can also look a bit like this too, though, depending on the lighting (mainly the right eye):

http://images2.fanpop.com/images/answers/83000/83175_00.03res_500_333.jpg