[Independent colors for bars in a single series]

I have a single series on my chart which depicts 3 different levels of authentications in a day...

chartMaster = new cfx.Chart();
var data = [1,7,46];
chartMaster.getLegendBox().setVisible(false);
chartMaster.getAllSeries().getPointLabels().setVisible(true);
chartMaster.setDataSource(data);
chartMaster.setGallery(cfx.Gallery.Bar);
chartMaster.getAxisY().setMin(0);
chartMaster.getAxisY().setMax(50);
chartMaster.getAxisX().getLabels().setItem(0, "EXECO");
chartMaster.getAxisX().getLabels().setItem(1, "MGMT");
chartMaster.getAxisX().getLabels().setItem(2, "EMP");

chartMaster.getSeries().getItem(0).setColor("#CC008B");

var divHolderMaster = document.getElementById('DivGraph');
        chartMaster.create(divHolderMaster);   

 I want to show these 3 bars in different colors. How to do this?

 Thanks in advance....