Open In App

D3.js | d3.lab() Function

Last Updated : 14 Aug, 2020
Comments
Improve
Suggest changes
Like Article
Like
Report
The d3.lab() function in D3.js is used to construct a new Lab color and returns 'l', 'a' and 'b' properties of the specified color taken as the parameter of the function. Syntax: 
d3.lab(color);
Parameters: This function accepts single parameter color which is specified CSS color. Return Value: This function returns 'l', 'a' and 'b' properties of the specified CSS color taken as the parameter of the function. Below programs illustrate the d3.lab() function in D3.js: Example 1: javascript 
<!DOCTYPE html>
<html>

<head>
    <title>d3.lab() function</title>

    <script src='https://d3js.org/d3.v4.min.js'></script>
</head>

<body>
    <script>
        
        // Calling the d3.lab() function
        // with some parameters
        var color1 = d3.lab("red");
        var color2 = d3.lab("green");
        var color3 = d3.lab("blue");
      
        // Getting the LAB properties
        console.log(color1);
        console.log(color2);
        console.log(color3);
    </script>
</body>

</html>
Output: 
{"l":53.24079414130722, "a":80.09245959641109, "b":67.20319651585301, "opacity":1}
{"l":46.22743146876261, "a":-51.69849552989111, "b":49.8968460010561, "opacity":1}
{"l":32.297010932850725, "a":79.18751984512224, "b":-107.8601617541481, "opacity":1}
Example 2: javascript 
<!DOCTYPE html>
<html>

<head>
    <title>d3.lab() function</title>

    <script src='https://d3js.org/d3.v4.min.js'></script>
</head>

<body>
    <script>
        
        // Calling the d3.lab() function
        // without any parameters
        var color = d3.lab();
      
        // Getting the LAB values
        console.log(color);
    </script>
</body>

</html>
Output: 
{"l":null, "a":null, "b":null, "opacity":1}
Reference: https://devdocs.io/d3~5/d3-color#lab

Next Article
D3.js | d3.hcl() Function

K
Kanchan_Ray
Improve
Article Tags :

Similar Reads

We use cookies to ensure you have the best browsing experience on our website. By using our site, you acknowledge that you have read and understood our Cookie Policy & Privacy Policy
Lightbox