What color is Sidewall (USA), 1968 ?

Source Crayola® CSS3 CSS4
#e3e2cc
 
#efdecd
almond
#dcdcdc
gainsboro
#dcdcdc
gainsboro
#636757
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#a6ab97
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#47483e
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey