Colors | Drawing, Haus Heiligenstädterstr. (Floor Plan and Garden) | Objects | Collection of Cooper Hewitt, Smithsonian Design Museum

Source	Crayola®	CSS3	CSS4
#43486a	#58427c cyber grape	#2f4f4f dark slate gray	#2f4f4f darkslategrey
#9598a1	#979aaa manatee	#a9a9a9 dark gray	#a9a9a9 darkgrey
#6a6e84	#757575 sonic silver	#708090 slate gray	#708090 slategrey

What color is Drawing, Haus Heiligenstädterstr. (Floor Plan and Garden) ?