What color is Sidewall (probably USA) ?

Source Crayola® CSS3 CSS4
#727e82
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#b8af99
 
#deaa88
tumbleweed
#a9a9a9
dark gray
#a9a9a9
darkgrey
#959e9a
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#3f4432
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#886951
 
#85754e
gold fusion
#696969
dim grey
#696969
dimgrey