I've received a lot of inquiries about the color of the eyes of the character Evaan from the Princess Leia miniseries that I'm drawing right now from Marvel Comics.
I'm going to call them a green/blue grey.
From Princess Leia #2 cover
So a grey leaning toward blue
From the Princess Leia #3 Cover
A grey leaning toward green.
The variation in color depends on the surrounding lighting of the scene.