CaoLiao QR Code

Appearance

How to Create QR Codes That Are Both Aesthetic and Easily Scannable ​

Original: https://cli.im/article/detail/2054

As QR codes become increasingly prevalent, many clients request custom-designed QR codes. While redesigning QR codes for aesthetics or creativity may satisfy client needs, poorly executed designs often result in unscannable codes after printing.

Factors Affecting QR Code Scannability ​

Taking the most common QR code type as an example, the following elements impact scannability:

Code Complexity ​

Content Length: Longer content creates denser patterns with more modules (black/white squares), reducing scannability. For extensive content, consider using dynamic QR codes which maintain simple patterns while supporting unlimited content and multimedia attachments.

file

Error Correction Level: Four levels exist:

  • L (7% recovery)
  • M (15%)
  • Q (25%)
  • H (30%)
    Higher error correction (recommend 30%) enables better damage tolerance.

file

Excessive Overlays ​

Large logos/text overlays may obscure critical modules. If essential, maintain ≥30% error correction.

file

Color Contrast ​

Module Color: Use high-contrast colors (black recommended) between modules and background. Light colors reduce low-light performance.

file

Position Markers: The three corner squares require clear contrast (black recommended). Test scanability with this example:

file

Size vs Scanning Distance ​

Minimum recommended sizes:

  • 2.5x2.5cm (10cm scanning distance)
  • 8x8cm (0.5m)
  • 20x20cm (3m)
  • 50x50cm (10m)

file

Module Shape Integrity ​

Clear, regularly shaped modules improve scan reliability.

file

Creating Attractive & Scannable QR Codes ​

Follow these guidelines and leverage professional tools to create effective QR codes without design expertise. We demonstrate using the popular CaoLiao QR Code Generator:

Processing Simple Patterns ​

  1. Upload a functional QR code to the CaoLiao design editor
  2. Apply branding elements (logo, colors)
  3. Download high-resolution output

Ideal for social media codes and quick visual upgrades.

file

Optimizing Complex Patterns ​

For intricate existing codes:

  1. Decode original content
  2. Rebuild using dynamic QR codes for simplified patterns
  3. Apply visual enhancements

Recommended for product packaging and information-rich applications.

file

Pro Tip: Use pre-designed templates for product manuals and marketing materials to ensure scannability while maintaining brand consistency.