Building a Color Picker with Vanilla JS What I Learned

Building a Color Picker with Vanilla JS — Here’s What I Learned

Building a color picker without relying on any library or framework was a surprisingly fun challenge. I wanted a simple tool where users could select a color and instantly see the result applied to an element on the page.

Setting Up the Structure

I started with a basic <input type="color"> element. HTML5 makes it easy to get a native color picker, but I wanted to make it more interactive, so I also included a preview box and a hex code display.

<input type="color" id="picker">
<div id="preview"></div>
<p id="hex">#000000</p>

Adding Interactivity with JavaScript

In Vanilla JS, it’s as simple as listening for the input event:

const picker = document.getElementById('picker');
const preview = document.getElementById('preview');
const hex = document.getElementById('hex');

picker.addEventListener('input', (e) => {
  const color = e.target.value;
  preview.style.backgroundColor = color;
  hex.textContent = color;
});

What I Learned

• Small features can still feel polished with attention to detail.
• Native HTML elements often save time compared to building from scratch.
• Good UI feedback—like instant color preview—improves the user experience greatly.

In the end, this project reinforced that Vanilla JS still has a powerful place in my workflow, especially for quick tools and prototypes.