What color is Sketchbook Folio, Close Study of Waves on Rocks ?

Source Crayola® CSS3 CSS4
#aba39a
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#8b837b
 
#9f8170
beaver
#808080
grey
#808080
grey
#605a56
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#353231
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey