Promptkoi

Cyanotype Botanical Contact Print

Stable Diffusion
By Varun Sharma Tested with Stable Diffusion SDXL 1.0

Cyanotype Botanical Contact Print is an SDXL 1.0 prompt that renders white plant silhouettes on Prussian blue. It suits botanical wall art and alt- process surface patterns.

Last tested: July 2026 with Stable Diffusion SDXL 1.0

Part of the Stable Diffusion prompt library · see more botanical prompts .

Remix in builder
White fern and leaf silhouettes on a deep Prussian blue cyanotype print
Cyanotype Botanical Contact Print — Stable Diffusion SDXL 1.0, Aspect ratio 2:3

Prompt 

A cyanotype contact print of pressed botanical specimens, white silhouettes of fern fronds and leaves against a deep Prussian blue background, the sun- printed edges soft and slightly uneven, a scatter of small leaf shapes around the central frond, vintage photographic paper texture, flat alt- process print

Negative prompt 

photorealistic, 3d render, color, blurry, watermark, text, signature, harsh digital edges

Settings

Model
Stable Diffusion SDXL 1.0
Aspect ratio
2:3
Steps
30
CFG scale
6.5
Sampler
DPM++ 2M Karras

How to use this prompt

A cyanotype is a contact print, so the plants must be pure silhouette — the prompt says "white silhouettes" and bans "color" and "photorealistic" in the negative to hold the two-tone look. The tell of a real cyanotype is the "soft and slightly uneven" sun-printed edge, so that phrase is load-bearing; crisp digital edges give the game away, which is why "harsh digital edges" is in the negative. Keep the arrangement to a central frond with a scatter of small leaves rather than a stated count — counting fronds invites the model to drop some. Prussian blue is named because generic blue drifts toward sky blue.

Variations to try

  • Single fern — one large fern frond filling the frame
  • Grid — a loose grid of small leaf prints on one sheet
botanical vintage wall art seamless patterns

Explore collections

Vintage Wall Art Prompts Vintage Stable Diffusion Prompts Botanical Wall Art Prompts Botanical Stable Diffusion Prompts

What to do next

Adapt it →

Open this prompt in the Stable Diffusion builder, pre-filled, and change one layer at a time.

Explore more →

Browse the full Stable Diffusion prompt library — every entry tested with its settings.
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For developers — copy this prompt as JSON 
{
  "title": "Cyanotype Botanical Contact Print",
  "prompt": "A cyanotype contact print of pressed botanical specimens, white silhouettes of fern fronds and leaves against a deep Prussian blue background, the sun- printed edges soft and slightly uneven, a scatter of small leaf shapes around the central frond, vintage photographic paper texture, flat alt- process print",
  "negative_prompt": "photorealistic, 3d render, color, blurry, watermark, text, signature, harsh digital edges",
  "model": "Stable Diffusion",
  "model_version": "SDXL 1.0",
  "settings": {
    "aspect_ratio": "2:3",
    "steps": 30,
    "cfg": 6.5,
    "sampler": "DPM++ 2M Karras"
  },
  "style_tags": [
    "botanical",
    "vintage"
  ],
  "use_case_tags": [
    "wall-art",
    "seamless-patterns"
  ],
  "source_url": "https://promptkoi.com/prompts/stable-diffusion/cyanotype-botanical-contact/"
}

The whole library is available as an open JSON dataset · developer docs.