What color is Key ?

Source Crayola® CSS3 CSS4
#756e66
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#2b211a
 
#000000
black
#000000
black
#000000
black
#4d443c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#a09a93
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey