What color is Card ?

Source Crayola® CSS3 CSS4
#51532f
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#848677
 
#757575
sonic silver
#808080
grey
#808080
grey
#e4d645
 
#ffcf48
sunglow
#f4a460
sandy brown
#f4a460
sandybrown
#43342f
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#56805a
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey