What color is Drawing, Design for Regulator ?

Source Crayola® CSS3 CSS4
#c5c1a5
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#5c5649
 
#6e5160
eggplant
#556b2f
dark olive green
#556b2f
darkolivegreen
#3c3831
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey