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

Introduction

I recently built a custom color picker using Vanilla JavaScript. It turned out to be a small but insightful project.

1. The HTML Structure

I started with a simple <input type="color"> element for native browser support, but enhanced it with a custom UI.

2. JavaScript Events

The input and change events were key. They let me update the preview color in real time as the user dragged the selector.

3. Live Preview

I created a preview box that updates instantly. This required careful handling of color formats (hex vs RGB).

4. Accessibility

I added keyboard support and labels to make sure the picker works for everyone.

5. Lessons Learned

Even simple UI components need thoughtful design. Users expect immediate feedback and intuitive controls.

Conclusion

Building a color picker in Vanilla JS reinforced the value of mastering the basics. You don’t always need a framework for small features.