What color is Poster, Xerox / Ten Thousand Years of Recorded Information ?

Source Crayola® CSS3 CSS4
#2b2829
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#554c45
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#e2dbb4
 
#efcdb8
desert sand
#f5deb3
wheat
#f5deb3
wheat
#c9b078
 
#bab86c
olive green
#bdb76b
dark khaki
#bdb76b
darkkhaki
#beb9a9
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver