The color wheel is a great guide to see which colors are your monochromatic everyday natural look or your more dramatic color choices for a more glamorous look.
Take a look at the color wheel and see where your eye color falls. For instance, if your eyes are green then the closest colors to green would be your more natural and monochromatic look. For a more glamorous look and to make your eyes pop look directly across from your eye color to find your more dramatic shades. Again, if your eyes are green then your more dramatic shades would have more red and plum undertones. So you would opt for purples and plum shades.
Here are my choices to use by eye color:
Green, Brown, Gold, Peach, Nude, Champagne, Pink, Taupe
Plum, Purple, Turquoise, Forest Green, Red-based brown
Natural Look: Brown, Copper, Gold, Champagne, Peach, Nude
Glamorous Look: Rich Navy Blue, Deep Purple, Charcoals, Black, Rich Gold, Plum, Green
Gray, Silver, Champagne, Soft Brown with a gray undertone, Taupe
Charcoal, Black, Purple, Plum, Blue, Charcoal Blue
Brown, Nude, Silver, Peach, Soft Blue, Taupe
Silver, Purple, Plum, Mauve, Charcoal, Black, Rich Brown
Coppers, Browns, Gold, Light Greens, Creme, Peaches
Plum, Purple, Red-based Brown, Deep Copper, Mahogany, Turquoise