Source Crayola® CSS3 CSS4
#31312d
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#c5bcac
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#857e76
 
#757575
sonic silver
#808080
grey
#808080
grey
#57544d
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen