We can convert RGB color code into HEX code. Simply first, we need to convert the RGB code into a number (data type) by using the Number() function. Then apply the toString() function on it. The function toString(16) needs 16 as its parameter.
Example:~
<!DOCTYPE html>
<html>
<head>
<title>RGB to HEX</title>
</head>
<body>
<script>
var red=Number(255).toString(16);
var green=Number(0).toString(16);
var blue=Number(0).toString(16);
if(red.length == 1){red = "0"+red;}
if(green.length == 1){green = "0"+green;}
if(blue.length == 1){blue = "0"+blue;}
var hex_code="#"+red+green+blue;
alert(hex_code);
</script>
</body>
</html>
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