Customizing the Color Palette of a Chart
You can use the chart palette to control the colors
or patterns used in the columns, lines, data markers or areas in
a chart. For example, if "Telephone" is the first in a data series
of order methods, and you want it to appear in blue, use the palette
to make the first item in the series blue.
You can customize the color palette for area, bar, bubble, gauge, Pareto, pie, and scatter charts.
You can also apply background effects to chart objects or change the colors of specific chart elements.