- Is my image uploaded anywhere?
- No. The file is read into a canvas by your own browser and the colors are worked out on your device. There is no upload, no server to receive it, and no copy kept. The tool keeps working with the network switched off, which is the plainest proof of it.
- How does it decide which colors to pull out?
- It groups the pixels into clusters and takes one color from each. The grouping happens in CIE Lab rather than RGB, because Lab distance follows how different two colors look rather than how far apart their numbers are. Each cluster is represented by a pixel that genuinely appears in the image, so no color in the palette is an average of colors you cannot see.
- What do the roles mean?
- Background is whatever covers the most area. Primary is the most saturated color with meaningful area. Accent is vivid and far enough in hue from the primary to read as separate. Surface sits closest to the background in lightness. Text is chosen for contrast rather than area, and has to clear 4.5 to 1 against the background. Each one shows the reason it was picked.
- Are the roles a recommendation or a fact?
- A suggestion. Role assignment is a set of rules about area, saturation and contrast, not a judgement about your design. The reasons are shown next to each color so you can disagree with the tool where it deserves it. The only one held to a hard standard is text, which is chosen on measured contrast.
- What if no color in my image is readable as text?
- It says so, and suggests plain black or white instead, whichever has more contrast against the background. It is marked as suggested rather than extracted, because it is not a color from your image.
- Which Tailwind version does the export use?
- Both are offered. Tailwind v4 moved configuration into CSS, so that export is a theme block. Tailwind v3 used a JavaScript config file, so that export is one of those. Pick the one that matches your project rather than the newest.
- Can I pick one exact color instead of a palette?
- Yes. Click anywhere on the image and it reports that exact pixel, which is useful when you want a color from a logo or a single detail rather than the overall spread.