---
name: Risograph style
slug: risograph
category: aesthetic
status: published
created: 2026-08-21T00:00:00.000Z
modified: 2026-08-21T00:00:00.000Z
definition: A print-inspired look of two or three flat spot colors that
  misregister slightly and show grain, imitating a riso duplicator.
aliases:
  - name: riso print
    source: community
  - name: riso aesthetic
  - name: misregistration style
  - name: spot color print look
tags:
  - editorial
  - retro
relations:
  contrastWith:
    - duotone
    - halftone
    - pop-art-style
  variantOf: []
  partOf: []
  seeAlso:
    - digital-collage
implementations: []
sources:
  - title: "Riso Kagaku: about RISO printers"
    url: https://us.riso.com/
demo: inline
exhibit: false
useWhen: flat spot colors that overprint and slip out of register
---

Every feature of the look is a consequence of how the machine works. A Riso duplicator is a
stencil printer: it burns a master for one colour, wraps it round a drum loaded with that
ink, and prints the whole run. A second colour means a second drum and a second pass, so the
paper goes through the machine once per ink. Nothing lines up perfectly twice, which is why
riso work has doubled edges and haloes of bare paper where two layers were supposed to meet.
The ink is soy based and never fully dries into the sheet, so it sits on the surface, mottles
into visible grain, and rubs off on your hands. Where two inks cross they overprint into a
third colour that neither drum contains, and tone inside a single colour is a coarse screen
of that one ink rather than a mix, so the palette stays flat and the paper keeps showing
through.

The machine was built in Japan in the 1980s as office equipment, sold to schools, churches,
and community groups that needed a thousand newsletters cheaply and did not care that the
result looked rough. Artists found it in the 2000s and adopted it wholesale, because it makes
short runs affordable and because its inks include colours offset printing cannot reach:
fluorescent pink is the signature, a genuinely fluorescent pigment with no equivalent in a
four colour process build. Zines, risograph studios, and small press comics carried the look
far enough that it now reads as a signal on its own. Riso means independent, made in small
numbers, and made by someone who chose the constraint.

It is worth separating from its two technique relatives on this site.
[Halftone](/halftone) is the screen itself, dot size carrying tone in a single ink, and riso
uses it inside each layer. [Duotone](/duotone) is a photograph mapped into two colours, an
image processing operation that can be done perfectly. Riso is the printing process whose
imperfections became the style, so the register slip, the grain, and the overprint are not
mistakes it tolerates but the entire reason anyone reaches for it.

Faking it on screen is mostly three moves: flat fills in two or three saturated spot colours,
layers offset by a couple of pixels rather than aligned, and a multiply blend where they
overlap so the crossing area darkens the way wet ink does, all under a fine grain overlay.
Two cautions. Misregistration applied to running text or to a control label is simply
illegible, so keep the slip on shapes, headlines, and illustration, and leave anything a
reader has to read or click in register. And the fluorescent inks are the part the medium
cannot deliver: a screen showing sRGB flattens that pink into something ordinary, which is
why riso work usually looks better in your hands than in a photograph of it.