What color is Drawing, Tomb of George Washington, Mt. Vernon ?

Source Crayola® CSS3 CSS4
#2d2c28
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#545047
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#736c61
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#8f8879
 
#9f8170
beaver
#808080
grey
#808080
grey
#cdc6b5
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver