[Solved]-How to change color of donut chart in highchart?-Highcharts

Got the solution. http://jsfiddle.net/faywp9w3/

changed this:- color: data[i].drilldown.colors[j]

// add version data
        drillDataLen = data[i].drilldown.data.length;
        for (j = 0; j < drillDataLen; j += 1) {
            brightness = 0.2 - (j / drillDataLen) / 5;
            versionsData.push({
                name: data[i].drilldown.categories[j],
                y: data[i].drilldown.data[j],
                color: data[i].drilldown.colors[j]
            });
        }

Declared : var colors = ['#0000ff','#458B00','#658300'];

And add this : colors: [colors[2],colors[1],colors[2],colors[1]] in drilldown

drilldown: {
                name: 'Equity',
                categories: ['Large Cap', 'Multi Cap', 'Mid & Small Cap','Eq Hybrid'],
                data: equity_data,
                colors: [colors[2],colors[1],colors[2],colors[1]]
            }