What color is Drawing, Study for God Appears to Moses and his Companions, Plate 171, Physica Sacra ?

Source Crayola® CSS3 CSS4
#a8a193
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey
#898075
 
#9f8170
beaver
#808080
grey
#808080
grey
#66625b
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#7a94a0
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey