Frequently Asked Questions
How does the color extraction work?
The tool draws your logo onto a hidden canvas, samples pixel data, and runs k-means++ clustering to find dominant colors. It skips near-white, near-black, and transparent pixels so you get the brand colors, not the canvas background.
What is contrast ratio and why does it matter?
WCAG contrast ratio measures how readable text is on a background. A ratio of 4.5:1 or above passes AA accessibility standards for body text. The table shows ✓ for passing pairs and ⚠ for failing ones.
What are the color theory harmonies?
Complement (180°) creates maximum contrast. Triadic (120°) gives vibrant variety. Split-complementary (150°/210°) is softer. Analogous (±30°) colors feel cohesive — great for backgrounds.
Does my logo get uploaded to a server?
No. Everything runs entirely in your browser using the File API and Canvas API. Your logo never leaves your device.
How do I use the extracted colors?
Click any swatch to copy its hex. Paste into CSS custom properties, Tailwind config, or Figma styles. The contrast column tells you which pairs are accessible.