ChatGPT Banner Design Prompts for Websites

CHATGPT PROMPTSBANNER DESIGN WEBSITES8 COPY-PASTE PROMPTS

A banner sits at the top of your page and sets the mood before anyone reads a word. A thoughtful banner design prompt gives ChatGPT the ratio, subject, brand colours and a clear area for your headline, so the picture helps your text instead of fighting it.

Banners are wide, which makes composition tricky. We place the subject at one side and keep the other side calm. We also keep the design simple so the file stays small and loads quickly.

AI results vary, so generate a few and pick the one with the cleanest text zone.

Copy-Paste Prompts: Banner Design Prompt (8 Ready Ideas)

Create a wide 16:6 website hero banner.
SUBJECT: A tidy desk setup with a laptop and coffee on the right third.
BACKGROUND: Soft white and pale blue with gentle depth.
TEXT ZONE: Keep the left half empty and uncluttered for a headline and button.
LIGHT: Bright, airy daylight.
AVOID: Text, logos, people, dark corners.

Create a 4:1 promotional banner background for an online store sale.
VISUAL: Colourful abstract shapes, confetti-like dots and curved ribbons that stay near the top and bottom edges.
PALETTE: [BRAND COLOUR], white and one warm yellow accent.
TEXT ZONE: Keep the centre band completely empty for a sale message.
STYLE: Flat modern, soft shadows.
AVOID: Text, numbers, products, clutter.

Create a 16:9 blog header illustration about [TOPIC].
VISUAL: Simple flat illustration of [MAIN OBJECT] with three or four small supporting icons around it.
PALETTE: Two main colours, [COLOUR 1] and [COLOUR 2], plus off-white.
LAYOUT: Subject on the right third, calm empty left area for the post title.
STYLE: Clean vector look, even outlines.
AVOID: Text, faces, busy patterns.

Create a 16:7 banner for a restaurant website.
SUBJECT: A warm wooden table with plates of [DISH TYPE], gentle steam rising, shallow depth of field.
LIGHT: Golden evening ambience with small blurred lights behind.
COMPOSITION: Food on the right, a soft dark blur on the left for text.
STYLE: Realistic photograph, natural colours.
AVOID: Brand names, text, hands, clutter.

Create a 16:6 banner for an online course.
VISUAL: Floating simple icons such as a book, lightbulb and pencil around a clean gradient.
PALETTE: Indigo to soft teal gradient with white accents.
LAYOUT: Icons clustered on the right, calm space on the left.
STYLE: Friendly 3D-flat mix.
AVOID: Text, logos, certificates.

Create a banner that works on both desktop and phones.
FORMAT: 3:2 with the main subject in the exact centre.
SUBJECT: A potted plant on a wooden shelf against a plain light wall.
SAFE ZONE: Keep the top 25 percent and bottom 25 percent free of important details.
LIGHT: Soft natural.
AVOID: Text, wide scenes, people.

Create a 16:6 abstract banner for a software startup.
VISUAL: Flowing translucent layers in blue and violet with soft light grain and gentle depth.
MOOD: Calm, trustworthy, modern.
TEXT ZONE: Left 50 percent smooth and low detail so a headline stays readable.
STYLE: Minimal, no sharp objects.
AVOID: Circuit clichés, text, logos, glowing brains.

Create a wide 16:6 festive banner for a small shop's website.
VISUAL: Garlands of small lights along the top edge, a few gift boxes and flowers in the bottom right corner.
PALETTE: [BRAND COLOUR], gold and cream.
TEXT ZONE: Large empty central area.
STYLE: Flat, cheerful, soft shadows.
AVOID: Text, religious figures, clutter.

Ratio first, headline later: pasting your banner design prompt into ChatGPT

State the ratio first. Then paste the prompt, adjust the brackets and generate. If the output is not exactly the ratio, crop in your editor and keep the subject within the safe zone.

Add your headline in a design tool or directly in your website builder. This keeps text sharp and editable, and it saves you from the garbled letters that image tools love to draw.

Generate at least three versions of every banner. The first is rarely the best, and the third often has the calm text area you were looking for.

Keeping a banner light, readable and honest

Large images slow a site down, and a slow site loses visitors before the banner is even seen. Keep the picture as simple as you can and compress it before you upload.

Colour contrast matters as much as file size. Pale grey text on a mid-tone photo is hard to read on a sunny phone screen, so test it outdoors once.

• Export as WebP or compressed JPG.
• Keep file size well below a few hundred kilobytes if you can.
• Use high contrast between text and background.
• Keep the focal point away from edges that may crop.
• Add alt text that describes the banner honestly.

Busy backgrounds, cropped subjects and fake logos

The usual issue is a busy background that makes text hard to read. Add 'calm low-detail area for text'. Another is placing the subject too far to one edge so phones crop it.

Do not ask for brand logos. Add your real logo afterwards in your design tool, where you can check the spelling and the colours.

Also avoid asking for a specific person's face or a celebrity look. Use objects, places or abstract shapes. They are safer and they age better when your brand changes.

Test the banner on your own phone before publishing, since many readers will see it there first.

Test the banner on your own phone before publishing, since many readers will see it there first.

Planning the text zone before you generate anything

The most common reason a banner fails is not the picture, it is the headline that has nowhere to sit. Before you write the banner design prompt, open your website builder and look at where the heading and button actually appear on desktop and on a phone. On many themes the text sits on the left half or in the exact centre. Decide which one yours is, and then tell ChatGPT in plain words: 'subject on the right third, left 45 percent calm and low detail'.

A quick check you can do yourself is the squint test. Make the generated image small, squint, and see if a big block of text would be readable anywhere on it. If the background has mid-tone blotches, bright highlights or busy lines under that zone, the headline will fight them. Ask for a smooth gradient, soft blur or plain wall in that area.

Also think about the overlay. Many designers put a thin dark or light tint over a banner so white or black text stays readable. If your site builder has this option, you can accept a slightly busier image. If it does not, request more contrast in the prompt: 'very pale background on the left, dark subject on the right'. Both choices are fine; just pick one on purpose.

Ratios, cropping and phone screens for a banner design prompt

Wide banners get cropped differently on every device. A 16:6 strip looks lovely on a laptop and then becomes a thin sliver, or a heavily zoomed centre crop, on a phone. This is why the centred hero in the list uses a squarer ratio and a safe zone. Remember that exact pixel sizes depend on your theme or builder, so check its help page for the recommended dimensions instead of trusting a number from a random blog.

A practical method is to generate one wide image and one squarer image from the same idea. Write the wide prompt first. Then reply 'now make a 3:2 version of the same scene, keep the subject centred, same colours'. Upload the wide one for desktop and the squarer one for mobile if your builder allows different images.

If ChatGPT does not return the exact ratio, do not fight it for ten rounds. Take the closest result, add empty space with a canvas-extend tool or simply crop. Just keep the important object inside the middle 70 percent so neither crop cuts it.

Does your banner match your kind of site? Style, colours and one brand look

A boutique selling cotton kurtas, a coaching centre and a software tool should not use the same banner mood. For a clothing or home-decor shop, warm realistic photos with soft light and a few props feel trustworthy. For a coaching or course site, flat illustrations with simple icons say 'friendly and clear' and are easier to keep consistent. For tech or finance-style pages, calm gradients and abstract layers are safest because there is no face or object that can look wrong.

Real photographs are risky when the subject matters. If you run a restaurant, an AI-made plate may not match what customers actually get, which feels misleading. Use AI for the atmosphere, such as a warm table setting with blurred background, and put your real food photos in the menu section. The same goes for a salon or clinic page: avoid AI pictures that imply results or facilities you do not offer.

Keep colours to two or three. Use your exact brand HEX codes and ask for 'flat colours, no extra rainbow accents'. Repeating the palette across banners makes a website hero image prompt result feel like one family, and asking for three variations of the same layout lets you test headlines over time. A small business site looks far more professional with a plain banner in its own palette than with a flashy one that matches nothing else.

Quick fixes when your banner looks wrong

If the image looks crowded, reply with 'remove half of the objects, make the background simpler, keep the same colours'. If it feels dull, ask for 'one bright accent shape in [BRAND COLOUR] near the subject'. If gibberish letters appear on a sign or screen, say 'no text anywhere, no signs, no screens with words'. If people appear when you wanted none, add 'no people, no hands' to the avoid line.

If the same style keeps coming back, change the camera or distance: 'top-down flat lay' gives a completely different banner from 'eye-level product shot'. Treat each reply like a note to a designer; ask for one change at a time and keep the rest unchanged.

Frequently Asked Questions

Final Thoughts

A clear banner design prompt works with your website, not against it: a wide ratio, one calm text zone and a simple subject that survives a phone crop. Start with the clean service-site hero and test it with your real headline.

When the homepage banner is done, make a matching blog header and a seasonal strip in the same colours. Other design and business prompts on Tech Boi Prompt will fit right after this.

Note: AI image and text results vary by tool, version and settings. Use only your own photos, avoid copying real people’s likeness, and follow the terms of the AI tool you use.