Source Crayola® CSS3 CSS4
#838176
 
#757575
sonic silver
#808080
grey
#808080
grey
#53524a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#a4a196
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey