What color is Playing Card ?

Source Crayola® CSS3 CSS4
#4e5559
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#544a4a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#766c6c
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey