What color is Sidewall (possibly USA) ?

Source Crayola® CSS3 CSS4
#7d9d6b
 
#87a96b
asparagus
#808080
grey
#808080
grey
#373534
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#57795e
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#5d89aa
 
#5d76cb
indigo
#5f9ea0
cadet blue
#5f9ea0
cadetblue
#afaaa2
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey