What color is Key ?

Source Crayola® CSS3 CSS4
#56524f
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#a4a09a
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#74726d
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#312d2d
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey