What color is Blueprint, Villa of M. Hemsy, St. Cloud, Plan du Premier Etage ?

Source Crayola® CSS3 CSS4
#4e7a9f
 
#5d76cb
indigo
#4682b4
steel blue
#4682b4
steelblue
#9aafba
 
#a2add0
wild blue yonder
#a9a9a9
dark gray
#a9a9a9
darkgrey