# Warning signs written for something invented

> Safety signage is already the flattest, most urgent language humans produce. Point it at something invented and nothing else needs to be added.

August 18, 2026 · https://justog.club/stories/hazard-signage-horror

Four black triangles in a row, hard-edged, on safety yellow. A figure looking up. A doorway with an
arrow leading out of it. An eye with a line struck through it. A spiral. Beneath them, in a solid
black bar: `DO NOT LOOK DIRECTLY`, and under that, `AREA 4 ONWARD`.

Nothing here is drawn to frighten anyone. It's drawn to be understood in under a second.

## Why does hazard signage work as a horror format?

Because it's already the flattest, most urgent language people make, and it wasn't built for this.

Safety signage exists for one purpose: get a warning into someone's head fast enough that they act
on it before they've had time to think. Hard black on yellow, triangle shapes, pictograms reduced to
the fewest lines that still read — every part of the system was optimised for speed of
comprehension, not for tone. Point that system at something that shouldn't exist, and the format
does the entire job on its own. Nothing needs to be added, because the system was never capable of
being anything but urgent.

## Why is triangle-versus-circle the whole grammar?

Because the shape tells you the type of instruction before you've read a word.

A triangle warns — mind this, it's here. A circle with a bar prohibits — don't do this. Two shapes
carry the entire logical structure of the system, and everything else is a pictogram slotted inside
one or the other. Once a reader knows that grammar, a triangle with an unfamiliar symbol inside it
still reads as *warning* even before the pictogram resolves — the same trick a small fixed set of
[icons plays in other systems built for instant reading](/stories/save-point-iconography).
The shape does half the communicating before the drawing does anything.

## Why is an invented pictogram more unsettling than a real one?

Because a real symbol tells you immediately what to avoid, and an invented one makes you work it
out.

A biohazard symbol or a radiation trefoil is legible on sight — you know the category of danger
without reading further. An invented pictogram — a figure looking up, an eye struck through, a
spiral with no caption explaining it — gives you the same visual confidence that it means something
specific, but withholds what. You know it's a warning. You don't know what it's warning against.
That gap, held inside a system built for zero ambiguity, is where the design does its work.

## Why is this a hard no rather than a licence question?

Because standardised safety marks have a regulated meaning, and reproducing one is a false claim
about a real hazard rather than a style reference.

Elsewhere in this material the rights answer is usually
[a licence question](/stories/quote-on-a-shirt-rights) — a name or a line belongs to
somebody, who licenses reproductions. A biohazard trefoil or a radiation symbol is different in
kind: not creative work with an owner who can grant permission for a joke version, but part of a
regulated signalling system built so anyone anywhere recognises a specific danger on sight, no text
required. Printing a real one on a shirt isn't referencing a style — it's asserting that a real
hazard category applies to whatever it's stuck to, and that's not a paperwork problem a licence can
solve. So the pictograms here are invented: shapes that read as belonging to a system, without
claiming to be one.

## Does the format work at a smaller scale — a door, a locker, a single object rather than a wall?

Yes, and a single sign reads just as urgently as a row of four.

One triangle, one pictogram, one line of instruction beneath it carries the same authority as a full
panel — the system doesn't need repetition to work, only the correct proportions and the correct
weight of black. A single invented symbol over a short phrase can sit on a chest the same way a
single sign sits on a door, and it loses none of the urgency for being alone.

## What's the strongest objection to this design?

That a shirt covered in warning symbols risks reading as a costume-shop prop rather than a document.

Real signage earns its authority from context — it's bolted to a wall, at the entrance to something,
doing an actual job. A shirt is not a wall. What keeps this from tipping into novelty-store territory
is restraint: hard black on true safety yellow, correct triangle proportions, a short instruction in
the actual register safety copy uses rather than a joke sentence. The format has to be taken as
seriously as the real one, or it stops being unsettling and starts being merchandise.

## Does it print well?

Yes — this is closer to a print process than an illustration to begin with.

Hard-edged black shapes on a single flat yellow ground are close to the ceiling of what
[fabric printing does well](/stories/bold-shapes-survive-fabric): no gradients, no fine
hatching, just clean geometry and total contrast. The triangles, the pictograms and the type all
survive at almost any size because the whole system was already designed for legibility at a
distance, long before it reached a shirt.

Safety yellow with black ink is the palette that carries the whole visual system — anything else
undercuts it. One ink is enough.

## How do I get one made?

Describe the warning at [JustOG](/) — how many symbols, what they forbid, and what the bar of text
underneath says. Pick a direction, drag the crop frame, see it composited on the real garment, and
it's made to order and shipped.

Designs other people have published are in the [shop](/shop).

Nobody reads past `DO NOT LOOK DIRECTLY` to ask what happened to the areas before it.