What color is Key ?

Source Crayola® CSS3 CSS4
#28180f
 
#000000
black
#000000
black
#000000
black
#5c5148
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#aba6a1
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#847d76
 
#757575
sonic silver
#808080
grey
#808080
grey