What color is Poster, International Design Conference in Aspen 1981 ?

Source Crayola® CSS3 CSS4
#b8a6ba
 
#b0b7c6
cadet blue
#a9a9a9
dark gray
#a9a9a9
darkgrey
#69375e
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#8b778c
 
#95918c
gray
#808080
grey
#808080
grey
#473a43
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey