What color is Bound Print, Page of Text, Printed on Recto and Verso ?

Source Crayola® CSS3 CSS4
#bdbcaf
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#8b8d84
 
#95918c
gray
#808080
grey
#808080
grey
#27292d
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey