Chart.js label color

var ctx = document.getElementById("barChart");
    var myChart = new Chart(ctx, {
        type: "bar",
        data: {
            labels: ["label 1", "label 2"], 
            datasets: [{
                label: "My Label",
                backgroundColor: "rgba(159,170,174,0.8)",
                borderWidth: 1,
                hoverBackgroundColor: "rgba(232,105,90,0.8)",
                hoverBorderColor: "orange",
                scaleStepWidth: 1,
                  data: [4, 5]
            }]
        },
        options: { 
            legend: {
                labels: {
                    fontColor: "blue",
                    fontSize: 18
                }
            },
            scales: {
                yAxes: [{
                    ticks: {
                        fontColor: "green",
                        fontSize: 18,
                        stepSize: 1,
                        beginAtZero: true
                    }
                }],
                xAxes: [{
                    ticks: {
                        fontColor: "purple",
                        fontSize: 14,
                        stepSize: 1,
                        beginAtZero: true
                    }
                }]
            }
        }
    });

   <!-- Edit:
   chart.js recently released new version v3.x
   which is not backwards compatible with v2.x
   -->

<!--<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>-->

   <!-- above link gets you latest version of chart.js (at v3.3.2 now)
        hence snippet didn't work propperly anymore :-(
   -->

<script src="https://cdn.jsdelivr.net/npm/chart.js@2.9.4"></script>

   <!-- above link gets you v2.9.4
        and snippet works agian  :-)
   -->

<div>
    <canvas id="barChart" height="140"></canvas>
</div>