What color is Border (Belgium) ?

Source Crayola® CSS3 CSS4
#ad9fa8
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#231313
 
#000000
black
#000000
black
#000000
black
#8a828b
 
#95918c
gray
#808080
grey
#808080
grey
#756569
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#494c52
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey