What color is Playing Card ?

Source Crayola® CSS3 CSS4
#54524b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#938674
 
#9f8170
beaver
#808080
grey
#808080
grey
#6f7164
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#a3baa2
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey