What color is Sidewall (USA), 1953 ?

Source Crayola® CSS3 CSS4
#474b4b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#9d9672
 
#9f8170
beaver
#808080
grey
#808080
grey
#7a7455
 
#85754e
gold fusion
#696969
dim grey
#696969
dimgrey
#757e7f
 
#757575
sonic silver
#808080
grey
#808080
grey
#704e3f
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen