What color is Sidewall ?

Source Crayola® CSS3 CSS4
#5e6163
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#2b1e28
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#979da1
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey