What color is Border (Belgium) ?

Source Crayola® CSS3 CSS4
#b8b2a7
 
#b0b7c6
cadet blue
#a9a9a9
dark gray
#a9a9a9
darkgrey
#716d66
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#484541
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#8f8b82
 
#95918c
gray
#808080
grey
#808080
grey