Answer №1

Make sure to match the color of both the point and point border.

datasets: [
    {
      label: 'Dataset 1',
      data: Utils.numbers(NUMBER_CFG),
      fill: false,
      borderColor: Utils.CHART_COLORS.red,
      backgroundColor: '#1F363D', # The same color should be used here
      borderWidth: 1,
      pointRadius: 5,
      pointBorderColor: '#1F363D' # Make sure this matches too
    },

https://i.sstatic.net/YWOXm.png

Answer №2

Assigning a color value to each data point in an array is simplified with this method.

data: {
        labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
        datasets: [{
            label: '# of Votes',
            data: [12, 19, 3, 5, 2, 3],
            backgroundColor: [
                'rgba(54, 162, 235, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(54, 162, 235, 1)'
            ],
            borderColor: [
                'rgba(255, 99, 132, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(54, 162, 235, 1)',
            ],
            borderWidth: 1
        }]

https://i.sstatic.net/j4imZ.png

View this code on codepen - https://codepen.io/non_tech_guy/pen/VwzwRrL

An interesting note is that the first borderColor value influences the line color, bringing you one step closer to customization.

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