What color is Sidewall (USA) ?

Source Crayola® CSS3 CSS4
#2d2822
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#5d574b
 
#6e5160
eggplant
#556b2f
dark olive green
#556b2f
darkolivegreen
#8f8975
 
#9f8170
beaver
#808080
grey
#808080
grey