What color is Separation For Silkscreen ?

Source Crayola® CSS3 CSS4
#725954
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#673830
 
#714b23
raw umber
#8b4513
saddle brown
#8b4513
saddlebrown
#8a7d78
 
#757575
sonic silver
#808080
grey
#808080
grey