What color is Sidewall, Aesop's Fables ?

Source Crayola® CSS3 CSS4
#8f887f
 
#95918c
gray
#808080
grey
#808080
grey
#726963
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#3b3736
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#b0a9a1
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey