What color is Print, Isononami (Wave on a Rugged Shore), No. 40, ca. 1910 ?

Source Crayola® CSS3 CSS4
#9fa5b0
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#a6bb7d
 
#bab86c
olive green
#8fbc8f
dark sea green
#8fbc8f
darkseagreen
#89a183
 
#95918c
gray
#8fbc8f
dark sea green
#8fbc8f
darkseagreen
#6b767d
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#82908c
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey