What color is Drawing, Observatory, Caramoor, Katonah, New York: Elevations, Plan and Section, 1936 ?

Source Crayola® CSS3 CSS4
#a7ab89
 
#95918c
gray
#8fbc8f
dark sea green
#8fbc8f
darkseagreen
#2d2d29
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#657576
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#8a876b
 
#8a795d
shadow
#808080
grey
#808080
grey
#635a48
 
#6e5160
eggplant
#556b2f
dark olive green
#556b2f
darkolivegreen