What color is Lock And Key ?

Source Crayola® CSS3 CSS4
#504b44
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#716e6b
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#2a2924
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey