RGB to Hexadecimal Color Conversion in JavaScript

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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.


Skills Graph

%%%%{init: {'theme':'neutral'}}%%%% flowchart RL javascript(("`JavaScript`")) -.-> javascript/BasicConceptsGroup(["`Basic Concepts`"]) javascript/BasicConceptsGroup -.-> javascript/variables("`Variables`") javascript/BasicConceptsGroup -.-> javascript/data_types("`Data Types`") javascript/BasicConceptsGroup -.-> javascript/arith_ops("`Arithmetic Operators`") javascript/BasicConceptsGroup -.-> javascript/comp_ops("`Comparison Operators`") subgraph Lab Skills javascript/variables -.-> lab-28601{{"`RGB to Hexadecimal Color Conversion in JavaScript`"}} javascript/data_types -.-> lab-28601{{"`RGB to Hexadecimal Color Conversion in JavaScript`"}} javascript/arith_ops -.-> lab-28601{{"`RGB to Hexadecimal Color Conversion in JavaScript`"}} javascript/comp_ops -.-> lab-28601{{"`RGB to Hexadecimal Color Conversion in JavaScript`"}} end

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");
  1. 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.

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