What color is Drawing, Section of the Wings and Elevation of a Wall on the Court, Palazzo Farnese, Rome ?

Source Crayola® CSS3 CSS4
#afac99
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#7d796b
 
#757575
sonic silver
#808080
grey
#808080
grey
#514c3f
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen