CSS | brightness() Function

The brightness() function is an inbuilt function which is used to apply a filter to set the brightness of the image. This function uses the linear multiplier to the image to increase or decrease brightness.

Syntax:

brightness( amount )

Parameters: This function accepts single parameter amount which holds the amount of brightness. The value of brightness is set in terms of number and percentage. The value 0% represents completely black image and 100% represents the original image.

Below example illustrates the brightness() function in CSS:

Example:

<!DOCTYPE html>  
<html>  
  
<head>  
    <title>CSS brightness() Function</title>  
      
    <style> 
        h1 { 
            color:green; 
        } 
        body { 
            text-align:center; 
        } 
        .brightness_effect { 
            filter: brightness(10%); 
        } 
    </style> 
</head>  
  
<body>  
    <h1>GeeksforGeeks</h1>  
      
    <h2>CSS brightness() function</h2> 
      
    <img class="brightness_effect" src=  
"https://media.geeksforgeeks.org/wp-content/cdn-uploads/20190710102234/download3.png"
        alt="GeeksforGeeks logo">  
</body>  
  
</html> 

Output:

Supported Browsers: The browsers supported by brightness() function are listed below:

Google Chrome
Internet Explorer
Firefox
Safari
Opera

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