D3.js schemeRdYlGn[] Function

Last Updated : 14 Aug, 2020

The d3.schemeRdYlGn[] function in D3.js is used to return a particular color from the RdYlGn sequential color scheme which is returned as a HEX string.

Syntax:

d3.schemeRdYlGn[k]

Parameters: This function accepts a single parameter as mentioned above and described below:

k: “k” is a number.

Return Values: It returns a HEX string.

Below given are a few examples of the function given above.

Example1:

<!DOCTYPE html>  
<html lang="en">  
<head>  
    <meta charset="UTF-8" />  
    <meta name="viewport"
        path1tent="width=device-width,   
        initial-scale=1.0"/>  
          
    <title>D3.js schemeRdYlGn[] Function</title>  
    <script src= "https://d3js.org/d3.v4.min.js"></script>  
    <script src= "https://d3js.org/d3-color.v1.min.js"></script>  
    <script src= "https://d3js.org/d3-interpolate.v1.min.js"></script>  
    <script src= "https://d3js.org/d3-scale-chromatic.v1.min.js"></script>  
</head>  
<body>  
    <center> 
    <h1 style="color:green;">GeeksForGeeks</h1> 
      
    <h3>D3.js schemeRdYlGn[] Function</h3> 
      
    <script>  
        document.write(d3.schemeRdYlGn[6][0]+"<br>");  
        document.write(d3.schemeRdYlGn[6][1]+"<br>"); 
        document.write(d3.schemeRdYlGn[6][2]+"<br>"); 
        document.write(d3.schemeRdYlGn[6][3]+"<br>"); 
        document.write(d3.schemeRdYlGn[6][4]+"<br>"); 
        document.write(d3.schemeRdYlGn[6][5]); 
    </script>  
    </center> 
</body>  
</html>

Output:

Example2:

HTML

<!DOCTYPE html>  
<html lang="en">  
<head>  
    <meta charset="UTF-8" />  
    <meta name="viewport"
        path1tent="width=device-width,   
        initial-scale=1.0"/>  
          
    <title>D3.js schemeRdYlGn[] Function</title>  
    <script src= "https://d3js.org/d3.v4.min.js"></script>  
    <script src= "https://d3js.org/d3-color.v1.min.js"></script>  
    <script src= "https://d3js.org/d3-interpolate.v1.min.js"></script>  
    <script src= "https://d3js.org/d3-scale-chromatic.v1.min.js"></script>  
</head>  
<style>  
    div {  
        padding: 10px;  
        width: fit-content;  
        height: 100px;  
    }  
</style>  
<body>  
    <center> 
    <h1 style="color:green;">GeeksForGeeks</h1> 
      
    <h3>D3.js schemeRdYlGn[] Function</h3> 
      
    <div class="b1">  
        <span>  
            D3.schemeRdYlGn[6][1]  
        </span>  
    </div>  
    <div class="b2">  
        <span>  
            D3.schemeRdYlGn[6][5]   
        </span>  
    </div>  
      
    <script>  
        // Array of colors is given  
        let color1 = d3.schemeRdYlGn[6][2];  
  
        let color2 = d3.schemeRdYlGn[6][5] ;  
  
        let b1 = document.querySelector(".b1");  
        let b2 = document.querySelector(".b2");  
        b1.style.backgroundColor = color1;  
        b2.style.backgroundColor = color2;  
    </script>  
    </center> 
</body>  
</html>