What color is Sidewall (France) ?

Source Crayola® CSS3 CSS4
#8387a5
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey
#4f526e
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#ada9b3
 
#b0b7c6
cadet blue
#a9a9a9
dark gray
#a9a9a9
darkgrey