What color is Sketchbook Folio, Blue Seascape with Cliffs and Structures, after 1878 ?

Source Crayola® CSS3 CSS4
#917957
 
#8a795d
shadow
#808080
grey
#808080
grey
#6d5f4b
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#b8a07c
 
#cd9575
antique brass
#bc8f8f
rosy brown
#bc8f8f
rosybrown