Floor marking color guidelinesYellow -- aisleways & traffic lanes;paths of egress;work cellsWhite -- production; racks, machines, carts, benches, &other equipmentRed -- defect/scrap area; red tag areaOrange -- material or product inspection;energized equipmentGreen -- materials & manufacturing :finished goods Blue -- materials & manufacturing :raw materalsBlack -- materials & manufacturing :works in progressBlack & yellow -- areas which present physical or health risks to employeesRed & white -- areas to be kept clear for safety reasons Black & white -- areas to be kept clear for operational purposes