Drop a picture and get its main colours as hex codes you can click to copy — useful when you are building a design around a photograph.
This page loads no libraries at all — the work is done by the browser itself. Your file is read on your own machine and never sent anywhere — open your browser's network tab and watch while you use it.
By counting. Pixels are grouped into similar shades and the biggest groups win — no model, no guessing at mood.
Because the photo really does contain several close shades. Ask for fewer colours and they merge.
Everything here is free and works the same way — in your browser.