.eyeFacts.

I found a great site that explains which eye shadow colours will compliment your eye colour.

If you have Blue Eyes:

"The best colors for blue eyes to enhance any blue shade are brown, gray, taupe and rose.Brown shades are the most flattering palette for blue eyes simply because the brown contrasts with the blue eye color, bringing out every shade of blue in the eye.Other good choices for blue eyes include lavender, plum and purple.These colors work well with blue eyes, although they do not enhance the blue eyes like the brown colors will.For a hip look try fuschia, silver and turquoise, to brighten any shade of blue eyes.Tip:Avoid using blue eye shadow on blue eyes; artificial blue color next to the natural blue of the eye will only look more unnatural.When someone notices you for the first time, they will only see the blue eye shadow instead of your eyes!"

For example:

Copper shadow

Gray shadow

Rose shadow