Hello,
some people call it a banded background. You can do this in Excel by combining an area chart with a line chart.
You need a data set for the stacked area chart to create the bands, and another set of data for the line (or column) chart in the foreground.
Jon Peltier has a very good step by step tutorial on his site here: http://peltiertech.com/excel-charts-with-horizontal-bands/
If you get stuck, just pipe up.