You can use more colors to make your eye color stand out beautifully! Blues and shades of gray will make the brown in your eyes look deeper or more bright. A black eyeshadow or eye pencil will give your eyes more power. Or opt for natural brown eyeshadow like 'tete-a-tint or 'Swiss Chocolate'.
With matte blue eyeshadows like 'Triennial Wave' and 'Electric Eel' you will transform your eyes in no time! You can finish your look with shimmery blue eyeshadows like 'In the Shadows'& 'Lunar'. The light reflecting particles make your look stand out from a distance!
Nice shades of grey for brown eyes are 'Vex' 'Scene' 'Glitch in the Matrix' and for black eyeshadow 'Carbon' is always a winner!