Source Crayola® CSS3 CSS4
#a9a39c
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#868176
 
#757575
sonic silver
#808080
grey
#808080
grey
#5c5248
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#3c2d24
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey