chart js legend color code example

Example 1: chartjs line color

backgroundColor: '',
borderColor: ''

Example 2: legend on click use default chartjs

// How to implement a custom behaviour when clicking on a legend element
var original = Chart.defaults.global.legend.onClick;
Chart.defaults.global.legend.onClick = function(e, legendItem) {
  /* do custom stuff here */
  original.call(this, e, legendItem);
};