Free

Risograph-like spot-colour print

Also called riso-like print, spot-ink duplication, stencil duplicator print, two-colour zine print, soy-ink spot print

Two or three fluorescent spot inks printed in separate passes, where the misregistration and the overprint are the point rather than a defect.

Made by: Stencil-duplicator printing: each colour is a separate pass of opaque spot ink onto uncoated paper, with registration drift between passes
Control: Prompt + reference — Words get you close; a style reference is what holds a whole set together.
Used for: Campaign & social
Editorial & story
Hero & above the fold

Why it works

What the direction actually buys you when it lands.

A hard two-or-three-ink limit forces real hierarchy: with no way to fake a tint, every element must earn one of the available inks.
Overprint creates a third and fourth colour for free where the passes cross, so a two-ink palette still reads as rich.
The fluorescent inks sit outside the CMYK gamut, so the result looks unmistakably printed rather than screen-native — cheap to produce, expensive to fake.
Registration drift and paper grain add human evidence without any nostalgia costume, which is why it reads as independent rather than retro.

What you see

The perceptual fingerprint — check a candidate against these.

Two or three flat, slightly translucent spot inks with no process-colour blending
Colours offset by a millimetre or two at the edges where the passes did not line up
A visibly darker, saturated third colour wherever two inks overprint
Coarse ink grain and roller texture inside the flat areas, never a clean fill
Warm uncoated paper showing as the highlight instead of pure white

Best fit

Where this direction is the right answer.

Campaign and social tiles that need to look independent and hand-made at speed
Editorial and community pages where a photographic look would feel corporate
Event, music and publishing brands with a small, committed palette
Any brand whose kit already runs on two strong accent colours

Avoid when

Known-bad conditions. Pick another direction instead.

The brand palette cannot be reduced to two or three inks — riso will not render a gradient brand
You need accurate product colour or photographic realism
The design must feel precise, institutional or high-trust; the drift reads as casual
Long body copy sits inside the artwork: the grain destroys small type

Compatibility

How it behaves next to the rest of a design system.

Pairs with

Bold grotesque and condensed sans display type
Warm off-white and paper-toned surfaces
Flat, borderless section layouts with hard edges
Kits built on two saturated accents rather than a gradient scale

Tension with

Photographic hero imagery in the same view
Soft shadows, glassmorphism and elevation systems
Large gradient fields
Palettes needing more than three distinct hues in one asset

Riso is a colour-system constraint before it is a texture. Map the inks to the kit's actual accent tokens; if the kit needs four hues in one image, this is the wrong direction rather than a texture to apply.

Accessibility

What has to be true before this ships to real readers.

Fluorescent inks are bright but low in contrast against paper; check every text pairing against the ink, not the paper
Never place type across a registration edge — the offset ghost destroys legibility
Overprint areas shift hue substantially, so verify contrast in the overprint colour separately from the two source inks
Ink grain is texture, not information; keep alt text on the subject

Agent tags

The machine-readable handles an agent matches on when it picks a direction.

limited-palette
print-texture
two-ink
independent
campaign
overprint
no-gradients

Build payload

What an agent needs in order to actually generate Risograph-like spot-colour print — prompt scaffold, constraints, parameters and review.

Prompt scaffold

Five separable facets. Vary subject and crop freely; keep the process wording verbatim — that is the direction's identity.

Process: stencil duplicator print, each colour laid as a separate pass of opaque spot ink, passes slightly misregistered, overprint where they cross
Surface: warm uncoated paper showing through as the lightest value, coarse ink grain and roller texture inside every flat area
Light: no modelled light; value comes from ink coverage and overprint density rather than from shading
Composition: bold flat shapes and clear silhouettes, hierarchy carried by which ink an element gets, generous paper margin
Finish: two or three fluorescent spot inks only, flat translucent coverage, visible registration offset, no process-colour blending

Example prompt

A pair of hands passing a folded newspaper, printed as a stencil-duplicator poster in two spot inks — fluorescent pink and a deep blue — each laid as a separate pass with a visible one-to-two-millimetre registration offset; a darker third colour appears wherever the inks overprint; warm uncoated paper shows through as the lightest value; coarse ink grain and roller texture inside every flat area; bold flat shapes with clear silhouettes and generous paper margin at the top for type; no gradients, no process-colour blending, no photographic shading.

Exclude

Risograph-like spot-colour print's known failure modes — state these as negatives.

no smooth gradients or process-colour blending
no more than three inks
no pure white highlights — the paper tone is the lightest value
no drop shadows, glows or soft edges
no photographic realism or modelled lighting
no generated headline text, band names or event lettering
no faux-vintage distress, tears or coffee stains

Parameters

Ink count: Two by default, three maximum. Name each ink explicitly and map it to a kit accent token
Registration offset: State a small, consistent drift (roughly 0.5–1.5% of frame width) — unstated, it becomes either zero or chaotic
Paper tone: Name a warm off-white; leaving it unstated produces screen white and kills the print read
Overprint: Ask for the overprint colour explicitly, otherwise the passes render as opaque stacking with no third hue
Grain scale: Tie grain to output size; grain generated for a poster disappears entirely in a social tile
Reference strength: Medium (roughly 0.4–0.6). Enough to hold ink behaviour, low enough to vary subject

Holding a whole set

Name the same two inks, in the same order, in every prompt in the set
Hold one paper tone across all assets — paper colour is the shared ground that makes a set look printed together
Keep the registration drifting in the same direction; random per-asset drift reads as inconsistency rather than process
Set typography separately in real type over the artwork; never let the model generate the lettering
Match grain scale to each asset's delivery size rather than reusing one generated texture
Vary subject and silhouette, never the ink list or the process wording

Before you ship

Are there genuinely only two or three inks, with no blended intermediate colours?
Is a distinct overprint colour visible where the passes cross?
Is the lightest value warm paper rather than screen white?
Does any type sit across a registration edge where the ghost would hurt legibility?
Check contrast for text against the ink and against the overprint colour separately
Any hallucinated lettering to remove before the real type goes on?