Midjourney Parameter Cheat Sheet for Every Social Platform
The Costly Aspect Ratio Mistake
I spent three hours batch-generating 40 visual assets for a content campaign across my YouTube channels and blogs, only to realize half of them rendered as awkward, cropped messes when published. My YouTube Shorts thumbnails had critical visual elements cut off at the edges, and my LinkedIn post images looked like zoomed-in pixel blocks. I had used standard square outputs for everything, assuming I could crop my way out of it later in Canva or CapCut.
When you run multiple automated content properties, sloppy formatting ruins conversion rates. Viewers scroll past ill-fitted graphics instantly. Midjourney is an incredible engine for image generation, but relying solely on basic prompts without parameter flags is a fast track to wasted GPU hours and broken layouts.
After testing thousands of generations across various social channels, I built a reliable system. This guide breaks down the precise flags, aspect ratios, and stylization values you need to generate platform-ready graphics on the first try.
Essential Midjourney Parameters for Social Formats
To get predictable results, you need to append parameters to the end of your prompts. Parameters start with double dashes (--) and tell the render engine how to scale, style, or randomize your output.
1. Aspect Ratio Flag: –ar
The aspect ratio parameter dictates the width-to-height proportion of your canvas. If you do not specify this flag, Midjourney defaults to a 1:1 square ratio. Here is how aspect ratios translate across major platforms:
- –ar 9:16 — Best for YouTube Shorts, Instagram Reels, TikTok, and Mobile Stories.
- –ar 16:9 — Standard widescreen for YouTube thumbnails, landscape blog headers, and Twitter/X single image posts.
- –ar 4:5 — Vertical Instagram feed posts. This fills the maximum portrait screen real estate on mobile devices without getting cut off in the feed.
- –ar 1.91:1 — Standard landscape ratio for LinkedIn link previews and Facebook feed posts to prevent unwanted cropping.
2. Aesthetic Control: –stylize and –style raw
Social feeds favor two different visual styles depending on the platform: highly polished artist renders or photorealistic snapshot aesthetics.
- –stylize [value] (or –s [value]) — Accepts values from 0 to 1000. Low values (e.g.,
--s 50) stay strictly faithful to your text prompt, making them great for precise editorial images. High values (e.g.,--s 750) let Midjourney apply heavy visual polish, ideal for YouTube thumbnails that need vibrant lighting and pop. - –style raw — Removes Midjourney’s default artistic bias. If you are generating stock imagery, real-world objects, or candid photos for blog articles, adding
--style rawprevents the image from looking like a digital painting.
3. Ad Creative Testing: –chaos and –weird
When running split tests on visual hooks for short-form video covers or social ads, you want distinct variations rather than four minor tweaks of the same image.
- –chaos [value] (or –c [value]) — Accepts values from 0 to 100. Higher values yield wildly different composition results across the four default grid choices. I use
--c 20when brainstorming visual angles for a new channel launch. - –weird [value] (or –w [value]) — Accepts values from 0 to 3000. It introduces quirky, unconventional compositions. Useful when you need eye-catching, scroll-stopping thumbnails on crowded feeds.
4. Negative Prompting: –no
Social media images often require overlay text, titles, or lower thirds added in post-production. You need clean background space without AI-generated visual clutter or hallucinated text.
Appending --no text, letters, watermarks, frame tells the renderer to leave out common unwanted artifacts. This gives you clean negative space to drop your text overlays in Canva or Photoshop.
Midjourney Parameters Cheat Sheet by Platform
Here is a quick reference table showing the parameter combinations I use daily across different distribution channels.
| Platform & Format | Aspect Ratio | Recommended Parameter Stack |
|---|---|---|
| YouTube Shorts / Reels | –ar 9:16 | –style raw –s 150 –no text |
| YouTube Widescreen Thumbnail | –ar 16:9 | –s 350 –c 10 –no text, blur |
| Instagram Portrait Feed | –ar 4:5 | –style raw –s 100 |
| LinkedIn / X Landscape | –ar 1.91:1 | –style raw –s 50 –no clutter |
| Seamless Carousel Patterns | –ar 1:1 | –tile –style raw |
How I Streamline Graphics for My Content Pipelines
Running multiple AI-automated sites and channels as a solo creator means I cannot afford to write prompts from scratch every time I produce a piece of content. I built a lightweight automation setup using Notion and Make (formerly Integromat) alongside my Midjourney Discord server.
When my video automation script generates a new title and topic, a webhook creates a prompt template in Notion with pre-configured parameter tags based on the target platform. For example, if the output tag is ‘YouTube Short’, the prompt builder automatically appends --ar 9:16 --s 200 --no graphic elements to the core prompt text.
If you prefer generating directly inside Midjourney’s Discord or web interface, save parameter strings in a snippet tool or custom keyboard shortcuts. Typing /imagine followed by your topic and hitting a macro key for your target platform’s parameters saves hours over a full month of production.
Where Midjourney Falls Short for Social Media
While parameter flags solve framing issues, Midjourney is not a magic bullet for complete graphic design pipelines. Here are the clear limitations you will run into:
- No HEX Color Precision: Midjourney does not understand exact color codes. If your brand palette uses specific HEX values like #FF5733, passing that in a prompt does nothing. You have to specify color names (e.g., ‘vibrant neon orange’) and handle exact brand tinting in editing software.
- Garbled Text Renders: Even with recent engine improvements, rendering legible typography directly inside Midjourney is hit or miss. It is always better to prompt for clean backgrounds using
--no textand layer crisp typography using dedicated editor software like Canva or Adobe Express. - Character Consistency Across Formats: Re-rendering the exact same visual character from a 16:9 YouTube thumbnail into a 9:16 vertical Reel using the same prompt rarely works perfectly. You will need to use pan, zoom, or image-to-image reference features (
--cref) rather than relying solely on initial parameters.
My Take
Don’t fall into the trap of over-engineering your prompts with ten different parameter flags. When I first started automating visual creation, I used to write monster prompts stuffed with conflicting stylization parameters, chaotic weights, and engine flags. The results were completely unpredictable.
Keep your parameter stacks focused. For 90% of your social content assets, you only need three flags: the aspect ratio (--ar), the aesthetic style (--style raw or a tuned --s value), and negative exclusions (--no). Master those three, set up macros or templates in your workspace, and save your GPU fast hours for high-volume publishing.
FAQ
How do I fix bad cropping on vertical 9:16 Midjourney images?
Always specify --ar 9:16 directly in your prompt rather than generating a 1:1 square image and cropping it manually. If key visual elements are cut off at the top or bottom of a 9:16 generation, use Midjourney’s custom zoom or pan features to expand the canvas vertically before downloading.
Can I use exact HEX color codes in Midjourney parameters?
No, Midjourney does not support native HEX color codes or specific color palette parameters. Describe colors using descriptive language, lighting styles, or artistic mediums (e.g., ‘warm pastel tones’, ‘monochromatic blue studio lighting’) and perform final color corrections in photo editing software.
What is the difference between –stylize and –chaos for thumbnails?
The --stylize parameter controls how much artistic polish, color saturation, and composition painting Midjourney applies to a single prompt idea. The --chaos parameter controls how drastically different the four initial grid images are from one another in composition and subject layout.
