Source Crayola® CSS3 CSS4
#4d6951
 
#4a646c
deep space sparkle
#556b2f
dark olive green
#556b2f
darkolivegreen
#7c8a74
 
#757575
sonic silver
#808080
grey
#808080
grey
#a6aa99
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey