Print & texture
Cyanotype / BlueprintDeveloped in sunlight.
A white silhouette or fine line drawing of a specimen floats on deep Prussian blue, with soft halos where the light has bled.
Make it yoursA good fit for
Stargazing and science nights, coastal and seaside festivals, and photography exhibitions.
A little art direction
Ask for one specimen-like object in the illustration notes (a fern, a telescope, a seaweed frond) shown flat and centered. Keep text spare and technical, like a drawing's margin notes.
The palette
From these words to these event posters
Now make it yours See the style in action.
Open larger viewA community eventMeteor Night
Open larger viewA music eventSurf Night
Open larger viewA community eventOcean Beach Clean-up
Open larger viewA music eventLow Tide Festival
Open larger viewA community eventSeed & Cutting Swap
Real generated examples; your own result will vary. The exact prompt behind each one is further down the page.
Your idea, this style
Make it yours.
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The prompts behind these event posters.
Each poster above was generated from the prompt below it, unedited. Copy one as-is or change the details. Your image-making app may interpret the style differently each time.
A community event · GPT Image 2.5 SunburstMeteor NightRead the exact prompt
Create a finished portrait poster for a community event, in a 2:3 aspect ratio. Produce the poster artwork itself, without a frame, wall, or room mockup. POSTER TEXT Use the following event information exactly as written. The labels before each colon are for you, not for the poster; print only the text after them. Do not invent extra event details. Title: Meteor Night When: Friday, November 6, 2026 · 8pm Where: Twin Peaks Summit Activities / highlights: Telescopes, hot drinks, and the Leonid meteor shower Admission: $3 · Dress warm Presented by Fog City Astronomers ART DIRECTION Interpret the supplied event in Cyanotype / Blueprint style. Visual vocabulary: deep Prussian blue ground; subject rendered as white silhouette or fine white line; high contrast with no mid-tones; delicate fine detail in white against blue; slight halo or soft edge where light has scattered. Lettering direction: white text on blue ground — stencil or fine technical lettering; engineering-drawing annotation style. Suggested colors: Prussian blue and white only; occasional very pale blue for mid-tones. Composition: specimen or object centred on blue field; technical text in margins or below. Atmosphere: scientific, ghostly, precise, quietly beautiful. Keep out of the design: warm colours of any kind, photographic realism with tonal range, decorative ornament, artificial yellowing or ageing. Apply the visual language to the supplied event; do not invent historical affiliations, endorsements, or extra copy. ILLUSTRATION NOTES A telescope on a tripod as a fine line drawing, with a meteor trail arcing overhead. These notes guide the imagery; do not print them as text. Make the event name the strongest text element. Keep supporting details readable, with clear contrast and comfortable margins. Check spelling and retain the supplied wording. Do not include these instructions, labels, watermarks, or extra slogans in the artwork.
A music event · GPT Image 2.5 SunburstSurf NightRead the exact prompt
Create a finished portrait poster for a live music event, in a 2:3 aspect ratio. Produce the poster artwork itself, without a frame, wall, or room mockup. POSTER TEXT Use the following event information exactly as written. The labels before each colon are for you, not for the poster; print only the text after them. Do not invent extra event details. Title: Surf Night When: Friday, July 31, 2026 · Doors 8pm Where: The Wharf Room, Fisherman's Wharf Lineup / highlights: Reverb-soaked instrumentals The Riptides · Los Rayos · Wave Pool Admission: $12 · 21+ ART DIRECTION Interpret the supplied event in Cyanotype / Blueprint style. Visual vocabulary: deep Prussian blue ground; subject rendered as white silhouette or fine white line; high contrast with no mid-tones; delicate fine detail in white against blue; slight halo or soft edge where light has scattered. Lettering direction: white text on blue ground — stencil or fine technical lettering; engineering-drawing annotation style. Suggested colors: Prussian blue and white only; occasional very pale blue for mid-tones. Composition: specimen or object centred on blue field; technical text in margins or below. Atmosphere: scientific, ghostly, precise, quietly beautiful. Keep out of the design: warm colours of any kind, photographic realism with tonal range, decorative ornament, artificial yellowing or ageing. Apply the visual language to the supplied event; do not invent historical affiliations, endorsements, or extra copy. ILLUSTRATION NOTES A surfboard drawn as a technical plan with fins and stringer, wave contour lines beside. These notes guide the imagery; do not print them as text. Make the event name the strongest text element. Keep supporting details readable, with clear contrast and comfortable margins. Check spelling and retain the supplied wording. Do not include these instructions, labels, watermarks, or extra slogans in the artwork.
A community event · GPT Image 2.5 SunburstOcean Beach Clean-upRead the exact prompt
Create a finished portrait poster for a community event, in a 2:3 aspect ratio. Produce the poster artwork itself, without a frame, wall, or room mockup. POSTER TEXT Use the following event information exactly as written. The labels before each colon are for you, not for the poster; print only the text after them. Do not invent extra event details. Title: Ocean Beach Clean-up When: Saturday, April 25, 2026 · 9am Where: Meet at Stairwell 21, Ocean Beach Activities / highlights: Gloves and bags provided Coffee and donuts after Admission: Free · Kids welcome with an adult Presented by Surf & Shore Volunteers ART DIRECTION Interpret the supplied event in Cyanotype / Blueprint style. Visual vocabulary: deep Prussian blue ground; subject rendered as white silhouette or fine white line; high contrast with no mid-tones; delicate fine detail in white against blue; slight halo or soft edge where light has scattered. Lettering direction: white text on blue ground — stencil or fine technical lettering; engineering-drawing annotation style. Suggested colors: Prussian blue and white only; occasional very pale blue for mid-tones. Composition: specimen or object centred on blue field; technical text in margins or below. Atmosphere: scientific, ghostly, precise, quietly beautiful. Keep out of the design: warm colours of any kind, photographic realism with tonal range, decorative ornament, artificial yellowing or ageing. Apply the visual language to the supplied event; do not invent historical affiliations, endorsements, or extra copy. ILLUSTRATION NOTES Silhouettes of a glove, a bottle, and a crab shell laid out like collected specimens. These notes guide the imagery; do not print them as text. Make the event name the strongest text element. Keep supporting details readable, with clear contrast and comfortable margins. Check spelling and retain the supplied wording. Do not include these instructions, labels, watermarks, or extra slogans in the artwork.
A music event · GPT Image 2.5 SunburstLow Tide FestivalRead the exact prompt
Create a finished portrait poster for a live music event, in a 2:3 aspect ratio. Produce the poster artwork itself, without a frame, wall, or room mockup. POSTER TEXT Use the following event information exactly as written. The labels before each colon are for you, not for the poster; print only the text after them. Do not invent extra event details. Title: Low Tide Festival When: Saturday, August 22, 2026 · Noon till sunset Where: Ocean Beach, Outer Sunset Lineup / highlights: Two stages, twelve bands, one long day by the water Headlined by Sea Glass and Marram Admission: $25 day pass · Kids under 12 free Presented by Posterage ART DIRECTION Interpret the supplied event in Cyanotype / Blueprint style. Visual vocabulary: deep Prussian blue ground; subject rendered as white silhouette or fine white line; high contrast with no mid-tones; delicate fine detail in white against blue; slight halo or soft edge where light has scattered. Lettering direction: white text on blue ground — stencil or fine technical lettering; engineering-drawing annotation style. Suggested colors: Prussian blue and white only; occasional very pale blue for mid-tones. Composition: specimen or object centred on blue field; technical text in margins or below. Atmosphere: scientific, ghostly, precise, quietly beautiful. Keep out of the design: warm colours of any kind, photographic realism with tonal range, decorative ornament, artificial yellowing or ageing. Apply the visual language to the supplied event; do not invent historical affiliations, endorsements, or extra copy. ILLUSTRATION NOTES A single frond of seaweed laid flat and centered, with small shells arranged around it. These notes guide the imagery; do not print them as text. Make the event name the strongest text element. Keep supporting details readable, with clear contrast and comfortable margins. Check spelling and retain the supplied wording. Do not include these instructions, labels, watermarks, or extra slogans in the artwork.
A community event · GPT Image 2.5 SunburstSeed & Cutting SwapRead the exact prompt
Create a finished portrait poster for a community event, in a 2:3 aspect ratio. Produce the poster artwork itself, without a frame, wall, or room mockup. POSTER TEXT Use the following event information exactly as written. The labels before each colon are for you, not for the poster; print only the text after them. Do not invent extra event details. Title: Seed & Cutting Swap When: Sunday, April 12, 2026 · 10am–1pm Where: Bernal Community Garden Activities / highlights: Bring seeds, cuttings, and spare pots Coffee and advice from the garden club Admission: Free · Rain or shine Presented by Bernal Garden Club ART DIRECTION Interpret the supplied event in Cyanotype / Blueprint style. Visual vocabulary: deep Prussian blue ground; subject rendered as white silhouette or fine white line; high contrast with no mid-tones; delicate fine detail in white against blue; slight halo or soft edge where light has scattered. Lettering direction: white text on blue ground — stencil or fine technical lettering; engineering-drawing annotation style. Suggested colors: Prussian blue and white only; occasional very pale blue for mid-tones. Composition: specimen or object centred on blue field; technical text in margins or below. Atmosphere: scientific, ghostly, precise, quietly beautiful. Keep out of the design: warm colours of any kind, photographic realism with tonal range, decorative ornament, artificial yellowing or ageing. Apply the visual language to the supplied event; do not invent historical affiliations, endorsements, or extra copy. ILLUSTRATION NOTES Fern fronds and seed pods laid flat as ghostly white silhouettes. These notes guide the imagery; do not print them as text. Make the event name the strongest text element. Keep supporting details readable, with clear contrast and comfortable margins. Check spelling and retain the supplied wording. Do not include these instructions, labels, watermarks, or extra slogans in the artwork.
Prompt version 1 · 5 generated examples · Copy-and-paste guide →
