What color is Poster, Nagoya Interiors: Next Wave International Design Competition ?

Source Crayola® CSS3 CSS4
#4c4b54
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#afb2c8
 
#b0b7c6
cadet blue
#c0c0c0
silver
#c0c0c0
silver
#797b8f
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey