Duotone Image Generator
Turn any photo into a two-color duotone in your browser — pick shadow and highlight colors, try presets, adjust contrast, and download a PNG.
Need color ideas? Try Get Color Palette from Image to pull shadow and highlight hues from the same photo.
How it works
Your photo is converted to luminance (grayscale), then each pixel is mapped between a shadow color and a highlight color. Processing runs entirely in your browser — nothing is uploaded.
Tips
- Portraits and high-contrast photos give the clearest duotone look.
- Use Contrast to push midtones toward shadows or highlights.
- Swap colors flips which end of the gradient is dark vs light.
- Match brand colors from our color palettes or a single hex page.