Source Crayola® CSS3 CSS4
#bfb5a0
 
#cdc5c2
silver
#a9a9a9
dark gray
#a9a9a9
darkgrey
#827b6c
 
#757575
sonic silver
#808080
grey
#808080
grey
#525044
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen