Source Crayola® CSS3 CSS4
#a8aba1
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#66797f
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#81847d
 
#757575
sonic silver
#808080
grey
#808080
grey
#5c5a43
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#764b30
 
#714b23
raw umber
#8b4513
saddle brown
#8b4513
saddlebrown