Medium•Web Development

ColorPicker

Build a fully functional, frontend-only Color Tools suite using Next.js App Router and Tailwind CSS. Features six interactive tools — Color Picker, Color Code Converter, Contrast Checker, Blindness Simulator, Gradient Maker, and HEX Picker — with a clean red-and-white theme, pixel-level image color extraction, and real-time color space conversions, all without any backend.

📚Scroll down to see free videos & courses ↓

Live Demo

What You Will Build

A professional Color Tools website with six distinct tools. Users can pick colors from uploaded images at the pixel level, convert between HEX, RGB, HSL, HSV, and CMYK color spaces, check WCAG contrast ratios for accessibility, simulate how colors appear under various types of color blindness, create and export custom CSS gradients, and browse a full HEX color palette — all powered by browser APIs in a responsive, modern UI.

Concepts You'll Learn

Next.js App Router with file-based routing and shared layouts
Using the HTML5 Canvas API for pixel-level image color extraction
Real-time color space conversion algorithms (HEX, RGB, HSL, HSV, CMYK)
WCAG contrast ratio calculation for accessibility compliance
Simulating color blindness transformations (Protanopia, Deuteranopia, Tritanopia)
Building and exporting CSS linear gradients programmatically
Clipboard API integration for one-click color code copying
Shared Navbar and Footer components across multiple pages
Controlled form inputs with real-time preview and validation
Responsive grid layouts with Tailwind CSS
TypeScript interfaces and type-safe component props
Dynamic routing for multi-tool single-page applications