What color is Drawing, Design for Atrium Reception Area, ca. 1960s ?

Source Crayola® CSS3 CSS4
#a9a594
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey
#86847d
 
#757575
sonic silver
#808080
grey
#808080
grey
#726858
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey