To change the colors of your chart, double-click your chart to open the chart pop-up window. Go to the Settings tab located at the top right corner of the window.
There will be an area for you to choose a color for your chart.
You can select to use a single color for your chart:
or you can set individual colors for each data value to work as identifiers.
Choose the perfect color from the range displayed or enter a hex-code (hex value) for the exact color you need.