The best eye shadow colors for grey eyes are copper, purple and blue. The best color to use for a specific person is influenced by their hair color and complexion; midnight blues and plum purples are better for people with darker complexions, while those who have lighter skin tones are better suited with lavender and tan.
Sheer blues and turquoise colors bring out the tone of gray eyes, and can be used in eye shadow and eyeliner. All eye shadow colors used should have some tone of gray in them, such as a gray-toned purple or steely blue. Purples with a touch of pink and copper with a hint of gold also translate well on individuals with grey eyes; all of these colors are opposite grey on the color wheel and enhance grey shades.