The jqxChart plug-in comes with 11 color schemes, but it is also possible to set your own colors for drawing the chart series. To customize the built-in rendering of the Chart series, you need to set the ‘color’ property of each serie to a valid ‘hex’ color value.

Code example:
seriesGroups: [ { type: 'stackedcolumn100', columnsGapPercent: 100, seriesGapPercent: 5, valueAxis: { unitInterval: 10, minValue: 0, maxValue: 100, displayValueAxis: true, description: 'Time in minutes', axisSize: 'auto', tickMarksColor: '#888888' }, series: [ { color: "#33769E", dataField: 'Running', displayText: 'Running' }, { color: "#C5845D", dataField: 'Swimming', displayText: 'Swimming' }, { color: "#5B339E", dataField: 'Cycling', displayText: 'Cycling' } ] } ]