seriesDefaults.labels.background String

The background color of the labels. Accepts a valid CSS color string, including hex and rgb.

Example - set the chart series label background

<div id="chart"></div>
<script>
$("#chart").kendoChart({
  seriesDefaults: {
    labels: {
      visible: true,
      background: "green"
    }
  },
  series: [
    { data: [1, 2] }
  ]
});
</script>