What color is Poster, Call for Entry, 3rd International Poster Triennial in Toyama with Green, Black and White Creature ?

Source Crayola® CSS3 CSS4
#7d7e76
 
#757575
sonic silver
#808080
grey
#808080
grey
#a8aca2
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#eff6b2
 
#eceabe
spring green
#eee8aa
pale goldenrod
#eee8aa
palegoldenrod
#51524b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#2c2c28
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey