How to remove title color box in Chart.js

Question

I am using chart js ( https://www.chartjs.org/ ) for charts. I checked all option in document but did not find how to hide title color box. Please see attached image

Answer 1

Adding the following should hide the legend (I hope by title color box you mean legend):

legend:
{
    display: false
}

var canvas = document.getElementById('myChart');
var data = {
  labels: ["January", "February", "March", "April", "May", "June", "July"],
  datasets: [{
    label: "My First dataset",
    fill: false,
    lineTension: 0.1,
    backgroundColor: "rgba(75,192,192,0.4)",
    borderColor: "rgba(75,192,192,1)",
    borderCapStyle: 'butt',
    borderDash: [],
    borderDashOffset: 0.0,
    borderJoinStyle: 'miter',
    pointBorderColor: "rgba(75,192,192,1)",
    pointBackgroundColor: "#fff",
    pointBorderWidth: 1,
    pointHoverRadius: 5,
    pointHoverBackgroundColor: "rgba(75,192,192,1)",
    pointHoverBorderColor: "rgba(220,220,220,1)",
    pointHoverBorderWidth: 2,
    pointRadius: 5,
    pointHitRadius: 10,
    data: [65, 59, 80, 0, 56, 55, 40],
  }]
};

function adddata() {
  myLineChart.data.datasets[0].data[7] = 60;
  myLineChart.data.labels[7] = "Newly Added";
  myLineChart.update();
}

var option = {
  showLines: true,
  legend: {
    display: false
  }
};
var myLineChart = Chart.Line(canvas, {
  data: data,
  options: option
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.1.3/Chart.min.js"></script>
<canvas id="myChart" width="400" height="250"></canvas>
<input type="button" value="Add Data" onclick="adddata()">