What color is Calendar, April, May, June, for four typographical calendar pictures for nineteen hundred and seventy two ?

Source Crayola® CSS3 CSS4
#2e2c29
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#8c7f68
 
#8a795d
shadow
#808080
grey
#808080
grey
#d2d1b8
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver