AI Prompt Templates for Design: Get Better Output Every Time

Why “any prompt” never works for agencies

Consistency is the real ROI of AI design – every tweak you avoid saves billable hours.

The five pillars of a repeatable prompt

• Brand Voice (e.g., witty, professional, friendly)
• Color Palette (hex codes or Pantone references)
• Layout Style (grid, split‑screen, overlay)
• Copy Tone & Length (headline, sub‑copy, CTA)
• Asset Type (carousel, story, banner, quote card)

When you lock these pillars into every prompt, the AI behaves like a disciplined designer rather than a random generator.

Prompt template for carousel posts

Carousels are the workhorse of Instagram and LinkedIn feeds. A solid template lets you drop client‑specific copy and let the AI handle layout.

1. Create a carousel of {num_slides} slides with a {layout_style} layout.
2. Use brand colors {primary_color}, {secondary_color} and font {font_name}.
3. Slide 1: Hook headline – {headline}.
4. Slides 2‑{n-1}: Supporting points – {bullet_1}, {bullet_2}, ….
5. Slide {n}: CTA button – {cta_text} with link {cta_url}.

Swap the placeholders and you have a client‑ready carousel in seconds.

Prompt template for story templates & quote cards

Stories need bold visuals and quick reads. Keep the prompt focused on hierarchy and animation cues.

• Background: {background_image} tinted with {overlay_opacity}% {brand_color}.
• Top text (quote): "{quote}" – use {font_name} italic, size {font_size}.
• Bottom label: {author_name} – small caps, {secondary_color}.
• Add swipe‑up CTA: "{cta_text}" with icon {icon_name}.

Prompt template for paid ad creatives

Ads have strict size rules and performance goals. Feed the AI the exact dimensions and call‑to‑action, then fine‑tune in Ad Creative Maker for pixel‑perfect edits.

1. Format: {ad_size} (e.g., 1080×1080 for Instagram feed).
2. Background: {image_theme} with brand overlay {brand_color} at {opacity}%.
3. Primary copy: "{headline}" – bold, max 30 characters.
4. Secondary copy: "{subcopy}" – supports headline, max 60 characters.
5. CTA button: "{cta_label}" – use brand accent color {cta_color}.

When the AI respects ad specs from the start, you skip the “does this fit the platform?” round.

Embedding prompt templates into your agency workflow

Treat each template as a living Google Sheet row: client name, placeholder values, and a one‑click “Generate” button that calls the Lumo API.

• Collect brand assets in a shared Figma library.
• Map spreadsheet columns to Lumo prompt placeholders.
• Run the prompt via Zapier or Make.com and push the editable file to a shared Drive folder.
• Schedule the final assets in Later or Hootsuite for automatic publishing.

Automation + structured prompts = predictable output, predictable margins.