[Chartjs]-Chart.js: colouring tooltip labels

It looks to me like you’re not setting properly the pointColor property on your datasets.

For each of your datasets, just set pointColor to the same value as strokeColor.

Something like, in the first dataset :

    strokeColor: "rgba(1,220,1,1)",
    pointColor: "rgba(1,220,1,1)",

And in the second dataset :

    strokeColor: "rgba(220,1,1,1)",
    pointColor: "rgba(220,1,1,1)",

And so on…

Here’s a jsfiddle to illustrate the point : http://jsfiddle.net/rdtome/aa2j9rut/.