What color is Poster, NR.1-Typographic Process, Textstrukturen [Organized Text Structure (for a Business Card)], from the School of Design, Basel ?

Source Crayola® CSS3 CSS4
#393533
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#a7a496
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#7f7c71
 
#757575
sonic silver
#808080
grey
#808080
grey