Highlight Area In A Chart Based On Set

I have been measuring variation against some key performance indicators and trying to plot them on a chart i.e., line chart.

Is there any way in Excel that i can highlight in different colours the area between the variable and benchmarks? I want to fill the area say as green when the variable performed better than benchmark (area between the variable line and benchmark line) and as red if variable under performed than benchmark (area between benchmark and variable.