What color is Border (Belgium) ?

Source Crayola® CSS3 CSS4
#d5d1c7
 
#dbd7d2
timberwolf
#d3d3d3
light gray
#d3d3d3
lightgrey
#9e9a92
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey
#7f7a72
 
#757575
sonic silver
#808080
grey
#808080
grey
#57544e
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#312e2a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey