What color is Sidewall - Sample (USA), 1906–08 ?

Source Crayola® CSS3 CSS4
#b5c1ca
 
#b0b7c6
cadet blue
#c0c0c0
silver
#c0c0c0
silver
#647189
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#8a98b9
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#eae9d3
 
#efdecd
almond
#faebd7
antique white
#faebd7
antiquewhite
#353b5a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey