What color is Sketchbook Folio, Sketch of Waves on Diagonal Cliffs ?

Source Crayola® CSS3 CSS4
#cdc6b9
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#87817e
 
#757575
sonic silver
#808080
grey
#808080
grey
#645f5d
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#403c3b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey