HSLA Color Values in CSS3

The HSLA color value is for Hue, Saturation, Lightness and Alpha. The alpha is the color opacity i.e. a number between 0.0 and 1.0. Here, 0.0 is for fiully transparent, whereas 1.0 would be for full opaque.


 Live Demo

<!DOCTYPE html>
   #demo1 {background-color: hsla(140, 100%, 50%, 0.8);}
   #demo2 {background-color: hsla(130, 100%, 50%, 0.6);}
   #demo3 {background-color: hsla(190, 100%, 50%, 0.4);}
   #demo4 {background-color: hsla(170, 100%, 50%, 0.3);}
   #demo5 {background-color: hsl(150, 100%, 60%);}
   #demo6 {background-color:rgba(108,111,35,0.6);}
<p id="demo1">David Warner</p>
<p id="demo2">Steve Smith</p>
<p id="demo3">Mark Waugh</p>
<p id="demo4">Steve Waugh</p>
<p id="demo5">David Johnson</p>
<p id="demo6">Andy Bichel</p>