2π
β
Here it is:
https://jsbin.com/sijowuruda/edit?html,js,output
The issue is that these colors:
backgroundColor: ['rgba(71, 86, 119, 0.2)'],
borderColor: ['rgba(71, 86, 119, .8)']
need to be strings not arrays
backgroundColor: 'rgba(71, 86, 119, 0.2)',
borderColor: 'rgba(71, 86, 119, .8)'
Otherwise, there the chart lib will read one color for each column / per data type, and since you have a single color in your array, only the first column has a corresponding color for each data type.
Source:stackexchange.com