What color is Poster, The Edge of the Millenium, A Symposium ?

Source Crayola® CSS3 CSS4
#6a75ce
 
#5d76cb
indigo
#6a5acd
slate blue
#6a5acd
slateblue
#343155
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey