CSS | hsla() Function

The hsla() function is an inbuilt function in CSS which is used to define the colors using the Hue Saturation Lightness Alpha (HSLA) model.


hsla( hue, saturation, lightness, alpha )

Parameters: This function accepts four parameters as mentioned above and described below:

  • hue: This parameter is used to define the degree on the color wheel. Its value lies between 0 to 360 where 0 or 360 represents red, 120 represents green and 240 represents blue.
  • saturation: This parameter is used to define the saturation where 0% represents shade of gray and 100% represents full color.
  • lightness: This parameter is used to define the lightness where 0% represents black, 50% represents normal, and 100% represents white.
  • alpha: This parameter is used to defines the opacity and the value lies between 0.0 (fully transparent) and 1.0 (fully opaque).

Below program illustrates the hsla() function in CSS:


<!DOCTYPE html>
        <title>hsla function</title>
            .gfg1 {
                background-color:hsla(120, 100%, 40%, 0.3);
            .gfg2 {
                background-color:hsla(120, 100%, 75%, 0.3);
            .gfg3 {
                background-color:hsla(120, 100%, 20%, 0.3);
            .gfg {
            h1 {
        <div class = "gfg">GeeksforGeeks</div>
        <h1>The hsla() Function</h1>
        <p class = "gfg1">Green</p>
        <p class = "gfg2">Light green</p>
        <p class = "gfg3">Dark green</p>


Supported Browsers: The browser supported by hsla() function are listed below:

  • Chrome 1.0 and above
  • Internet Explorer 9.0 and above
  • Firefox 3.0 and above
  • Safari 3.1 and above
  • Opera 10.0 and above

This article is attributed to GeeksforGeeks.org

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