What color is Print, Design for an Engraved Tazza with a Portrait of the Duke of Alba as Commander of Folly, ca. 1578 ?

Source Crayola® CSS3 CSS4
#514c44
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#a9a99c
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#767066
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey