What color is Sidewall, Sound Waves ?

Source Crayola® CSS3 CSS4
#71904a
 
#85754e
gold fusion
#6b8e23
olive drab
#6b8e23
olivedrab
#386062
 
#4a646c
deep space sparkle
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#7d8171
 
#757575
sonic silver
#808080
grey
#808080
grey