What color is Border (USA), late 19th century ?

Source Crayola® CSS3 CSS4
#3e3b2b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#686548
 
#6e5160
eggplant
#556b2f
dark olive green
#556b2f
darkolivegreen
#8f7c5e
 
#8a795d
shadow
#808080
grey
#808080
grey