What color is Sample Book, Environment 15 ?

Source Crayola® CSS3 CSS4
#42303a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#c0beb1
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#6f6c3b
 
#85754e
gold fusion
#556b2f
dark olive green
#556b2f
darkolivegreen
#888674
 
#9f8170
beaver
#808080
grey
#808080
grey
#474643
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey