What color is Print, Title page, "Il Campo Marzio dell'Antica Roma," from part 20 of "The Complete Works of Giovanni Battista Piranesi" ?

Source Crayola® CSS3 CSS4
#b0ae9e
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#848376
 
#757575
sonic silver
#808080
grey
#808080
grey
#e6dfcc
 
#efdecd
almond
#dcdcdc
gainsboro
#dcdcdc
gainsboro
#53554e
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey