Which color contact lenses should I buy?

Okay, long story short I realized I look sort of like a nerd with my glasses, which is pretty depressing. :P
So I decided to buy a pair of contact lenses for myself but I'm not able to decide the right color to pick.So which color do you think goes best?
I'm olive-ish brown skinned guy with jet black hair that's sorta straight. (if that helps pick)
I need a color that goes well and looks natural as well.

Here are a couple of pics:

With glasses:



Without Glasses 1:



Without Glasses 2:



PS- Sometimes the links don't open directly, you need to copy and paste the URL onto your address bar, so these are a 100% working links.

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