What color is Sidewall (possibly USA) ?

Source Crayola® CSS3 CSS4
#47537f
 
#58427c
cyber grape
#483d8b
dark slate blue
#483d8b
darkslateblue
#8ca580
 
#87a96b
asparagus
#8fbc8f
dark sea green
#8fbc8f
darkseagreen
#5f757f
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#7a8b84
 
#757575
sonic silver
#808080
grey
#808080
grey