What color is Drawing, Siedlungstype [Housing Example (Façade Elevation and Floor Plan)], ca. 1929 ?

Source Crayola® CSS3 CSS4
#737162
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#989480
 
#95918c
gray
#808080
grey
#808080
grey
#45443f
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey