What color is Box And Cover ?

Source Crayola® CSS3 CSS4
#71735e
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#96947f
 
#95918c
gray
#808080
grey
#808080
grey
#433e31
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey