valueAxis.colorString
Color to apply to all axis elements. Individual color settings for line and labels take priority. Any valid CSS color string will work here, including hex and rgb.
Example
<div id="sparkline"></div>
<script>
$("#sparkline").kendoSparkline({
valueAxis: {
color: "green",
labels: {
visible: true
},
line: {
visible: true
}
},
series: [{
data: [10, 15, 8, 12]
}]
});
</script>