What color is Drawing, Study for Maximum Mass Permitted by the 1916 New York Zoning Law, Stage 1 ?

Source Crayola® CSS3 CSS4
#433d31
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#aa936a
 
#9f8170
beaver
#bdb76b
dark khaki
#bdb76b
darkkhaki
#685a42
 
#6e5160
eggplant
#556b2f
dark olive green
#556b2f
darkolivegreen
#887554
 
#85754e
gold fusion
#696969
dim grey
#696969
dimgrey