What color is Playing Card ?

Source Crayola® CSS3 CSS4
#6c746d
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#4d534d
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#85a49d
 
#979aaa
manatee
#8fbc8f
dark sea green
#8fbc8f
darkseagreen