What color is Sketchbook Folio, Quick Study of Waves on Rocks and Tall Dark Cliffs, 1885–1902 ?

Source Crayola® CSS3 CSS4
#b7b0a3
 
#b0b7c6
cadet blue
#a9a9a9
dark gray
#a9a9a9
darkgrey
#938a7e
 
#95918c
gray
#808080
grey
#808080
grey
#7d7060
 
#8a795d
shadow
#696969
dim grey
#696969
dimgrey