Source Crayola® CSS3 CSS4
#a6a7af
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#729397
 
#6dae81
forest green
#778899
light slate grey
#778899
lightslategrey
#707a7d
 
#757575
sonic silver
#808080
grey
#808080
grey