Color Converter

Convert between HEX, RGB, and HSL with live preview.

Developer

About Color Converter

Colors on the web are expressed in three main formats: HEX (hexadecimal, e.g., #FF5733), RGB (Red, Green, Blue, e.g., rgb(255, 87, 51)), and HSL (Hue, Saturation, Lightness, e.g., hsl(11, 100%, 60%)). Each format has its strengths: HEX is compact and widely used in CSS; RGB maps directly to how screens display color; HSL is the most intuitive for adjusting hue, brightness, and saturation. This tool converts between all three instantly and shows a live preview swatch so you can visually confirm the color. It supports shorthand HEX (#F00), full HEX (#FF0000), and various RGB/HSL input styles. Everything runs in JavaScript in your browser, making it fast, private, and always available.

How to Use Color Converter

  1. Enter a color value in any of the three fields: HEX (e.g., #2563EB), RGB (e.g., 37, 99, 235), or HSL (e.g., 220, 84%, 53%).
  2. The other two formats update instantly, along with a live color preview swatch.
  3. Use the Copy buttons to copy the value you need for CSS, design tools, or documentation.

Key Features

  • Bidirectional conversion between HEX, RGB, and HSL color formats
  • Live color preview swatch that updates in real time
  • Supports shorthand HEX (#F00), full HEX (#FF0000), and various input styles
  • One-click copy for each format — ready to paste into CSS or design tools
  • 100% browser-based — no server communication, no data uploaded
  • Works alongside the Color Palette Generator for complete color workflows

When to Use This Tool

  • Converting a HEX color from a brand guide to RGB for use in a design tool
  • Adjusting hue and saturation in HSL, then copying the HEX result for CSS
  • Documenting color specifications across multiple formats in style guides
  • Debugging CSS color issues by verifying the numeric values behind a HEX code
  • Quick reference when a client or designer provides a color in a format different from what you need

Technical Details

HEX to RGB conversion parses the hexadecimal string into three 8-bit integers (0–255) for red, green, and blue. RGB to HSL conversion normalizes the RGB values to 0–1, computes the hue based on which channel is dominant, and derives saturation and lightness from the min/max of the three channels. HSL to RGB uses the standard algorithm that maps hue (0–360°), saturation (0–100%), and lightness (0–100%) back to 0–255 RGB values. All conversions are mathematically lossless at the precision of 8-bit color (256 levels per channel). The tool uses pure JavaScript with no external libraries.

Conclusion

The Color Converter is an essential tool for web developers and designers who need to quickly switch between HEX, RGB, and HSL color formats. With live preview and one-click copying, it streamlines any color workflow — all within the privacy of your browser.

Frequently Asked Questions

What formats are supported?
HEX (e.g., #FF5733 or FF5733), RGB (e.g., 255, 87, 51), and HSL (e.g., 11, 100%, 60%). Enter a value in any format and the others update instantly with a live color preview.
Is my data sent to a server?
No. All conversion and preview happen in your browser. Nothing is uploaded.
Can I copy the CSS value?
Yes. Use the Copy buttons to copy the current color as a hex code, rgb() function, or hsl() function — ready to paste directly into your CSS.
What is the difference between RGB and HSL?
RGB defines color by the intensity of Red, Green, and Blue channels (0–255 each). HSL defines color by Hue (0–360° on the color wheel), Saturation (0–100%), and Lightness (0–100%). HSL is often more intuitive for adjusting colors because you can change brightness or vibrancy without affecting the base hue.