What color is Button with Painted Lady Button, late 18th century ?

Source Crayola® CSS3 CSS4
#6e6b64
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#8f8e81
 
#95918c
gray
#808080
grey
#808080
grey
#494333
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey