What color is Sketchbook Folio, Minerva, Mercury, Juno and Venus on Clouds, Study after Marcantonio Franceschini ?

Source Crayola® CSS3 CSS4
#d1ccb9
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#a59579
 
#9f8170
beaver
#bc8f8f
rosy brown
#bc8f8f
rosybrown
#86745c
 
#8a795d
shadow
#696969
dim grey
#696969
dimgrey
#5f5144
 
#6e5160
eggplant
#556b2f
dark olive green
#556b2f
darkolivegreen
#3e3735
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey