What color is Drawing, Rock Cliff ?

Source Crayola® CSS3 CSS4
#adab9e
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#656058
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#817c71
 
#757575
sonic silver
#808080
grey
#808080
grey
#45423d
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey