Duotone Generator
Upload an image, pick a shadow and a highlight color, and get the Spotify-style duotone look instantly. Everything is processed locally — your image never leaves the browser.
How duotone works
Duotone maps an image's luminance onto a two-color ramp: darks land on the shadow color, lights on the highlight. Strong combos pair one deep and one bright hue set well apart — navy with warm gold, forest with acid yellow. It unifies wildly different photos into one visual language, which is why brands and cover art love it.