What color is Book, Book of Carpet Designs ?

Source Crayola® CSS3 CSS4
#787068
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#4a453c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#c4c0b8
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#545995
 
#58427c
cyber grape
#483d8b
dark slate blue
#483d8b
darkslateblue
#898caf
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey