What color is Blueprint, Villa of M. Hemsy, St. Cloud, Face Posterieure ?

Source Crayola® CSS3 CSS4
#54779b
 
#5d76cb
indigo
#4682b4
steel blue
#4682b4
steelblue
#7c98b0
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey
#bdc9cc
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver