RGB to Hexadecimal Color Conversion in JavaScript

Introduction

In this lab, we will be exploring the process of converting RGB values to hexadecimal color codes in JavaScript. We will be using bitwise left-shift operator and Number.prototype.toString() to convert the given RGB parameters to a 6-digit hexadecimal value using String.prototype.padStart(). This lab will help you understand the conversion process and give you hands-on experience with the implementation of the algorithm in JavaScript.

RGB to Hex Converter

To convert RGB values to a hexadecimal color code:

1. Open the Terminal/SSH and type node to start practicing coding.
2. Use the following function:

const RGBToHex = (r, g, b) =>
  ((r << 16) + (g << 8) + b).toString(16).padStart(6, "0");

3. Call the function with the RGB values as arguments to get a 6-digit hexadecimal value.

For example:

RGBToHex(255, 165, 1); // 'ffa501'

Summary

Congratulations! You have completed the RGB to Hex lab. You can practice more labs in LabEx to improve your skills.