Give a photo a two-color duotone look

The job

Duotone maps a photo's brightness onto a two-colour gradient — dark areas take the shadow colour, bright areas the highlight colour, midtones blend between. It is the quickest way to make a photo sit inside a brand palette or look consistent across a page of mismatched images.

Applying the effect

Choose an image, pick the shadow and highlight colours, and set the pivot — where in the tonal range the midpoint sits. Dragging the pivot darker pushes more of the image toward the shadow colour.

• Shadows first: a deep navy shadow and warm cream highlight reads 'editorial'; pure black and white just desaturates.
• The pivot default (0.5) keeps the midpoint balanced; move it before touching the colours again.
• Transparency survives in PNG and WebP output.

Where it stops

It is a per-pixel luminance map, not a smart grade — it can't dodge a face or protect a colour that matters. For skin-toned subjects pick highlight colours that flatter them, or crop first and let the background take the duotone. Input up to 25 MiB; output keeps the input format.