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About this tool
Upload a photo and discover your fictional aura color with playful descriptions!
This aura colour generator finds the dominant hue of a photo using a saturation-weighted hue histogram in HSL colour space, then maps that hue to one of eight aura bands with a playful reading and a five-colour palette. With no photo, it hashes a name with FNV-1a so the same name always returns the same aura. The colour science is real; the aura reading is entertainment.
Open Aura Color Generator on AltFTool — it loads instantly in your browser.
Use the Photo field to pick a JPG, PNG or WebP image from your device — the caption under it reads 'Reading colours…' while the pixels are sampled, then switches to the filename, and the aura appears without any further click
With no photo, type into the 'Or a name' field instead: the name is hashed with FNV-1a, so the same spelling always returns the same aura. Either way the reading, the dominant hue in degrees, the intensity (Faint through Blazing) and the five-swatch aura palette recompute as you go
Click Copy result to put the aura name, CSS colour, hue, traits, reading and palette on the clipboard as plain text; Reset — and the 'Use the name instead' button that appears once a photo is loaded — clears the photo and puts the name field back to Alex
Pixels are read on a canvas in your browser; no upload, no account, no stored image.
Name-based auras use an FNV-1a hash, so the same name gives the same colour every time.
Every reading comes with analogous (±30°), triadic (+120°) and complementary (+180°) companions in CSS-ready form.
It scales your photo to 220 pixels on the long edge, converts up to 20,000 sampled pixels from sRGB to HSL, and builds a hue histogram in 10° buckets weighted by each pixel's saturation. The heaviest bucket wins. Weighting by saturation matters because grey pixels have a numerically defined hue that means nothing visually.
Because the average saturation of the photo came in under 8%, which is the threshold where an image has no meaningful hue at all. Flat indoor light, a white wall behind you or a black-and-white photo will all do it — retake the photo somewhere with colour in the frame.
No. There is no measurable field around people and no scientific basis for aura reading. What this tool measures is genuine — the dominant hue of your photograph — and the personality lines attached to each hue are written for fun, not as an assessment.
Yes. The whole calculation is deterministic: same pixels in, same hue out, with no randomness anywhere. Re-uploading the same file gives the identical result, and a name typed the same way always hashes to the same hue.