What color is Separation For Silkscreen ?

Source Crayola® CSS3 CSS4
#7d6561
 
#8a795d
shadow
#696969
dim grey
#696969
dimgrey
#9a9691
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey
#65352b
 
#714b23
raw umber
#8b4513
saddle brown
#8b4513
saddlebrown
#817973
 
#757575
sonic silver
#808080
grey
#808080
grey