Image & Color Articles
Color palette extraction, visual asset optimization, and design tools.
QR Code Not Scanning? Find the Cause and Fix It
Troubleshoot unreadable QR codes by checking the original image, crop, contrast, camera access, and printed proof. Separate decoding failures from broken links.
Scan a QR Code from a Screenshot or Pasted Image
Read a QR code already on your device by uploading a screenshot or pasting an image. Copy decoded text and inspect links without using a second camera.
Complementary, Analogous, Triadic, and Split-Complementary Palettes
Master color wheel harmonies. Explore the mathematics behind complementary, analogous, triadic, and split-complementary schemes, and learn why wheel harmony does not guarantee WCAG accessibility.
How to Extract a Color Palette from a Photo or Logo
Learn how to extract dominant color palettes from photographs and vector brand logos using median-cut quantization, alpha filtering, and canvas sampling.
How to Turn Image Colors into a Usable Website Palette
Transform raw extracted photo or logo swatches into an accessible, production-ready website design system using the 60-30-10 rule and CSS custom properties.
Upload, Clipboard Paste, or Image URL: Choosing an Input Method
Compare the speed, privacy, and technical trade-offs of file uploads, clipboard pastes, and image URL inputs in online color picker tools.
What Dominant-Color Percentages Actually Mean
Demystify color extraction percentages. Learn how pixel area coverage is calculated, why percentages sum to exactly 100%, and how visual weight differs from mathematical dominance.