What color is Border ?

Source Crayola® CSS3 CSS4
#b4b3a9
 
#b0b7c6
cadet blue
#a9a9a9
dark gray
#a9a9a9
darkgrey
#2e2d3b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#85817b
 
#757575
sonic silver
#808080
grey
#808080
grey