What color is Sidewall (possibly France) ?

Source Crayola® CSS3 CSS4
#b8c9cf
 
#b0b7c6
cadet blue
#b0c4de
light steel blue
#b0c4de
lightsteelblue
#5b7670
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#829192
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey
#a4989b
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey