What color is Drawing, Study for an Illustration, Constellation ?

Source Crayola® CSS3 CSS4
#9898ae
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#7c758e
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#725d5c
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#403833
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#957e6d
 
#9f8170
beaver
#808080
grey
#808080
grey