Source Crayola® CSS3 CSS4
#c4c4b2
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#7c7c74
 
#757575
sonic silver
#808080
grey
#808080
grey
#52524d
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey