Chartjs-How to edit my custom tooltips in my line chart using chart.js?

You can use custom callback function to render with your own choice html tags and colors, Follow the official documentation link for further guidance.

http://www.chartjs.org/docs/latest/configuration/tooltip.html#external-custom-tooltips

options: {
tooltips: {
enabled: false,
custom: function(tooltipModel) {}
}
}