What color is Print, Plan et Elevation du Château et Jardin de Louvois, late 17th century ?

Source Crayola® CSS3 CSS4
#8c8673
 
#9f8170
beaver
#808080
grey
#808080
grey
#635e4f
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#b19368
 
#9f8170
beaver
#bdb76b
dark khaki
#bdb76b
darkkhaki
#3d382f
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey