Gray is an uncommon, very rare eye color1
Gray-eyed people are considered to be courageous2
Gray eyes have less melanin in the iris than other eye colors4
1) Genetics of Eye Color, Eyedoctorguide.com, 2011
2) CyberPulse/Impulse Research Corp., survey commissioned by CIBA Vision, women aged 16 to 35, 2002
3) Lucy Media, Celebrities by eye color, Lucywho.com, 2014
4) Guttery, Linda Claire, The Genetics of Eye Color, 2003
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