Source Crayola® CSS3 CSS4
#c1b4a4
 
#cdc5c2
silver
#a9a9a9
dark gray
#a9a9a9
darkgrey
#877b6d
 
#8a795d
shadow
#808080
grey
#808080
grey
#5c5349
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen