What color is Sketchbook Folio, Ocean Inlet with Distant Mountains, 1890–1900 ?

Source Crayola® CSS3 CSS4
#aaa298
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#716962
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#3a3432
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey