Source Crayola® CSS3 CSS4
#a6a6b2
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#77796f
 
#757575
sonic silver
#808080
grey
#808080
grey
#938870
 
#9f8170
beaver
#808080
grey
#808080
grey
#57584d
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#373b36
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey