What color is Poster, Paul Marantz / Arata Isozaki: The Language of Light ?

Source Crayola® CSS3 CSS4
#5c5c63
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#323134
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#7ea1af
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey
#7e6cad
 
#926eae
violet (purple)
#778899
light slate grey
#778899
lightslategrey
#8d8c79
 
#95918c
gray
#808080
grey
#808080
grey