JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://www.chartjs.org/assets/Chart.js"></script>
<canvas id="myChart" width="500" height="500"></canvas>

JavaScript

var ChartTitleOps = {

    showTooltips: true,
    tooltipFillColor: "#e64c65",
    tooltipFontFamily: "'Bree Serif', sans-serif",
    tooltipFontColor: "#fff",
    tooltipTemplate: "<%if (label){%><%=label%> <%}%>(<%= value %> votes)",
    barValueSpacing: 2,
    scaleLineWidth: 10,
    scaleFontFamily: "'Bree Serif', sans-serif",
    responsive: false,
    animation: false,
    maintainAspectRatio: false,
    scaleIntegersOnly: true,
    scaleShowGridLines: false,
    scaleBeginAtZero: true,
    scaleFontSize: 17,
    scaleFontColor: "#FFFFFF",
    scaleOverride: true,
    scaleSteps: 12,
    scaleStepWidth: 1,
    scaleStartValue: 0,
    scaleGridLineColor: "#1f253d"
};

var ChartTitleData = {
    labels: ["a", "b", "c", "d"],
    datasets: [{
        fillColor: "rgba(52,104,175,0.7)",
        strokeColor: "rgba(52,104,175,1)",
        data: [3, 4, 9, 7]
    }]
};

var wpChartChartTitleBar = new Chart(document.getElementById("myChart").getContext("2d")).Bar(ChartTitleData, ChartTitleOps);

// Change 2nd bar to red (display).
wpChartChartTitleBar.datasets[0].bars[1].fillColor = "rgba(229,12,12,0.7)";
wpChartChartTitleBar.datasets[0].bars[1].strokeColor = "rgba(229,12,12,1)";

// Change 2nd bar to red (highlight setting on mouse over)
wpChartChartTitleBar.datasets[0].bars[1].highlightFill = "rgba(0,229,0,0.7)";
wpChartChartTitleBar.datasets[0].bars[1].highlightStroke = "rgba(0,229,0,1)";

wpChartChartTitleBar.update();