>>Specially for eye color - I've read somewhere that there are no green eyes among humans. What we call green is sort of grayish-olive-ish. Any plant with such a color would wilt, suffocated by lack of photosynthesis. Still, your users will want to enter green - so let them. If your business rules allow that, though.
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>You can really be a nitpicker sometimes <g>. Eyes are not green, they're "sort of grayish-olive-ish"? Don't you think "green" gets the idea across succinctly? I doubt anyone is going to be left in the dark by that.

Was not me - I've read somewhere. So while technically there may not be human green eyes, I don't mind applying the word, because it does describe them in a way that any reader can understand.

Words for colors don't map easily across languages, and many people actually don't distinguish as many colors in speech as they are capable of doing visually. For my grandmother, any garment between dark chocolate and banana color was simply "yellow". Hungarian word for carrot is "yellow turnip" - not orange, not any other, but yellow. Likewise, any cat in car colors (i.e. shades of gray but somewhat tiger striped, quite common sort back home) is called green.

>Lucky me, I had a green eyed girlfriend. A green eyed redhead. Double lucky me.

Sounds like a great mysterious lady. Few familiar faces with such features immediately swam into my mind, but none of them with both at the same time. Really rare.