Range Band
The range band feature is used to highlight a particular range along the y-axis using start and end range property. You can also customize the color and opacity of the range band.
this.rangeBandSettings = {
startRange: 4,
endRange: 30,
color: "#ff14ae",
opacity: 0.4
};
<ej-sparkline id="sparklinecontainer" [rangeBandSettings]="rangeBandSettings">
</ej-sparkline>