What color is Drawing, Venetian Architecture Capriccio with the Colleoni by Andrea Verrochio ?

Source Crayola® CSS3 CSS4
#9f9c8e
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey
#7b766a
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#5e5a53
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey