What color is Sidewall (USA) ?

Source Crayola® CSS3 CSS4
#2f302c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#658465
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#9db59c
 
#979aaa
manatee
#8fbc8f
dark sea green
#8fbc8f
darkseagreen
#8c777c
 
#757575
sonic silver
#808080
grey
#808080
grey