What color is Print, Fashion Plate from The Englishwoman's Domestic Magazine ?

Source Crayola® CSS3 CSS4
#3f474e
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#627d89
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey