What color is Drawing, Canal Scene Near Bruges, Belgium ?

Source Crayola® CSS3 CSS4
#6a7f83
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#879d9a
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey
#5a645d
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#374140
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#b7c2c2
 
#b0b7c6
cadet blue
#c0c0c0
silver
#c0c0c0
silver