What color is Drawing, Design for a Mass-Operational House Designed by Hector Guimard, Support Construction ?

Source Crayola® CSS3 CSS4
#90845e
 
#8a795d
shadow
#808080
grey
#808080
grey
#dcd5be
 
#dbd7d2
timberwolf
#d3d3d3
light gray
#d3d3d3
lightgrey
#564d3a
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen