[Solved]-How can I get every bar in different colour using Highchart?-Highcharts

Referring to comments you can set a specific color to a single point by adding a color property programmatically to its object like that:

  series: [{
    data: [
      ["Qualcom", 17],
      {
        name: "The ram",
        y: 12,
        color: 'red'
      },
      ["Aoperty", 8],
      ["Ob.", 8],
      ["Sugh", 8]
    ],
    color: '#2ecc71'
  }]

API reference:

• https://api.highcharts.com/highcharts/series.column.data.color

Demo:

• https://jsfiddle.net/BlackLabel/craqy1sv/1/

If you want to add a specific color to a point when a condition is matched you can loop through each series point in chart load event and update a matched point:

  chart: {
    type: 'column',
    events: {
        load: function() {
        var chart = this,
            series = chart.series[0];

        series.points.forEach(function(point) {
          if (point.name === 'The ram') {
            point.update({
                color: 'red'
            })
          }
        });
      }
    }
  }

API reference:

• https://api.highcharts.com/highcharts/chart.events.load
• https://api.highcharts.com/class-reference/Highcharts.Point#update

Demo:

• https://jsfiddle.net/BlackLabel/jmuoevz1/