Preview the prompt +
# Build brief — an original marketing website in the taste of OpenSea
> Reference: https://opensea.io · UIDiscovery: https://uidiscovery.com/sites/opensea · captured 2026-09-22 at a 1440px desktop viewport (+ 390px iPhone shots) · [full page](https://uidiscovery.com/media/captures/opensea/full.webp) · [scroll video](https://uidiscovery.com/media/captures/opensea/preview.mp4)
## 1. Goal
Build an original marketing website for **[the user's brand]** that feels as considered as OpenSea — same structure, rhythm and polish, entirely new identity and content.
## 2. Originality rules
- Build an ORIGINAL design for the user's own brand in the same *taste* as OpenSea: structure, rhythm, hierarchy, palette mood and type pairing.
- Never reuse OpenSea's logo, name, product imagery, illustrations, icons, screenshots or copy. Write new copy for the user's product.
- If the user hasn't said what their product is, ask first (or use clearly marked placeholders like [Brand], [Product], [Audience]).
- Reference screenshots are for looking at, not for embedding or tracing.
## 3. The taste, in short
- OpenSea (opensea.io): Crypto & Web3 marketing website, dark.
- 8 sections: Content → Statement → Showcase → Content → Features.
- Spacing: short, dense bands (median section ≈314px).
- Type: one family (Gt America). Imagery: mostly product UI screenshots/mockups, some abstract 3D / gradient art.
## 4. Page structure (top to bottom)
### 1. Content — supporting content that deepens one idea.
- Layout: text + media block. Half to one screen (418px at 1440), page background; 33 image elements (icons, logos, product UI — not 33 photos); 8 buttons (tabs, toggles or per-card actions).
- Slots: Heading; Body copy; Supporting visual (see image plan); Primary + secondary action.
- [Screenshot](https://uidiscovery.com/media/captures/opensea/s-01.webp) · imagery: slot 1
### 2. Content — supporting content that deepens one idea.
- Layout: text + media block. Compact band (294px at 1440), page background; 25 image elements (icons, logos, product UI — not 25 photos); primary + secondary button.
- Slots: Heading; Body copy; Supporting visual (see image plan); Primary + secondary action.
- [Screenshot](https://uidiscovery.com/media/captures/opensea/s-02.webp) · imagery: slot 2
### 3. Statement — a large-type moment that sets tone and pace.
- Layout: oversized typography with lots of space. Compact band (314px at 1440), page background; 11 images/icons (a set of cards or a small gallery); primary + secondary button.
- Slots: Heading; Body copy; Supporting visual (see image plan); Primary + secondary action.
- [Screenshot](https://uidiscovery.com/media/captures/opensea/s-03.webp) · imagery: slot 3
### 4. Showcase — show the product (or the result) itself as proof.
- Layout: a large framed visual with a short caption or heading. Compact band (314px at 1440), page background; 9 images/icons (a set of cards or a small gallery); primary + secondary button.
- Slots: Heading; Body copy; Supporting visual (see image plan); Primary + secondary action.
- [Screenshot](https://uidiscovery.com/media/captures/opensea/s-04.webp) · imagery: slot 2
### 5. Content — supporting content that deepens one idea.
- Layout: text + media block. Compact band (294px at 1440), page background; 18 image elements (icons, logos, product UI — not 18 photos); 12 buttons (tabs, toggles or per-card actions).
- Slots: Heading; Body copy; Supporting visual (see image plan); Primary + secondary action.
- [Screenshot](https://uidiscovery.com/media/captures/opensea/s-05.webp) · imagery: slot 2
### 6. Content — supporting content that deepens one idea.
- Layout: text + media block. Compact band (314px at 1440), page background; 12 images/icons (a set of cards or a small gallery); primary + secondary button.
- Slots: Heading; Body copy; Supporting visual (see image plan); Primary + secondary action.
- [Screenshot](https://uidiscovery.com/media/captures/opensea/s-06.webp) · imagery: slot 3
### 7. Content — supporting content that deepens one idea.
- Layout: text + media block. Half to one screen (413px at 1440), page background; 9 images/icons (a set of cards or a small gallery); 3 buttons (tabs, toggles or per-card actions).
- Slots: Heading; Body copy; Supporting visual (see image plan); Primary + secondary action.
- [Screenshot](https://uidiscovery.com/media/captures/opensea/s-07.webp) · imagery: slot 3
### 8. Features — explain the key benefits, grouped so each can be scanned in seconds.
- Layout: section title over a grid or alternating rows of benefit items. Compact band (328px at 1440), page background; 7 images/icons (a set of cards or a small gallery); primary + secondary button.
- Slots: Section title; 2 items: icon or visual + short title + 1–2 line description; Primary + secondary action.
- [Screenshot](https://uidiscovery.com/media/captures/opensea/s-08.webp) · imagery: slot 2
Inner pages also captured (Pricing, Shop, Security): https://uidiscovery.com/sites/opensea?view=pages
## 5. Design system
### Colour
| Role | Hex | Use | Contrast on background |
|---|---|---|---|
| background | `#101011` | page background | — |
| foreground | `#ffffff` | body text, headings | 19.0:1 |
| accent | `#0786ff` | primary buttons, links, highlights — sparingly | 5.3:1 |
| surface | `#101011` | cards, inputs, alternate bands | text on it 19.0:1 |
| muted | `#ffffff` | secondary text, borders | 19.0:1 |
Captured palette: `#101011` `#0786ff` `#ffffff`. Roles are assigned automatically — sanity-check them against the screenshot. Keep the palette's *mood* (dark, cool) and proportions; swap the accent for the user's brand colour.
### Tokens
```css
:root {
--background: #101011;
--foreground: #ffffff;
--accent: #0786ff;
--surface: #101011;
--muted: #ffffff;
--font-heading: "Inter Tight", ui-sans-serif, system-ui, sans-serif;
--font-body: "Inter Tight", ui-sans-serif, system-ui, sans-serif;
--radius: 12px; /* calibrate from the screenshot */
}
/* Tailwind v4 — in globals.css after @import "tailwindcss"; */
@theme {
--color-background: var(--background);
--color-foreground: var(--foreground);
--color-accent: var(--accent);
--color-surface: var(--surface);
--color-muted: var(--muted);
--font-heading: var(--font-heading);
--font-sans: var(--font-body);
}
```
### Typography
- Headings: **Inter Tight** (Google Fonts) — reference uses Gt America. “Gt America” is a licensed face — use Inter Tight (or Libre Franklin) as the free stand-in, or license the original.
- Body: same family — a single-family system; create contrast with size and weight, not a second face.
- Scale (starting point, sizes weren't measured — calibrate against the 1440px screenshot): display clamp(2.5rem, 5vw, 4.25rem), h2 clamp(1.75rem, 3vw, 2.5rem), h3 1.25rem, body 1rem–1.125rem / 1.6, small 0.875rem. Headings: tight tracking (-0.02em), line-height 1.05–1.15.
### Spacing & rhythm
Sections run ≈314px tall at 1440 (median; range 294–418px, captures cap at 1700px) — short, dense bands. Start with 64–80px vertical padding per section on desktop and about two-thirds of that on mobile. One continuous background — separate sections with space and type, not colour bands. 8px spacing grid, 1200–1280px max content width, 24px (mobile) / 32–48px (desktop) gutters.
### Shape, depth & theme
On dark, separate layers with 1px borders at ~8–12% white and soft glows instead of drop shadows. Read exact corner radius, border and shadow treatment from the screenshots. Dark-first; for a light mode swap background ↔ foreground, lighten the surface, keep the accent and re-check contrast.
## 6. Imagery plan
Best guess: mostly **product UI screenshots/mockups**, some abstract 3D / gradient art (dark, cool, Crypto & Web3). Inferred from element counts, colours and industry — not from the pixels — so open the linked screenshots and match the real style before sourcing anything.
### Slot 1 · 1. Content → photography
- Photography, seen in the capture (plant, decorative plant, fence). (measured from the screenshot) Count: 1–3 key visuals; the rest are icons/avatars. Aspect: 4:5. Look first: [ref 1](https://uidiscovery.com/media/captures/opensea/s-01.webp)
- **Stock** — “abstract gradient mesh dark”: [Unsplash](https://unsplash.com/s/photos/abstract-gradient-mesh-dark?orientation=portrait) · [Pexels](https://www.pexels.com/search/abstract%20gradient%20mesh%20dark/?orientation=portrait) · [Pixabay](https://pixabay.com/images/search/abstract%20gradient%20mesh%20dark/?orientation=vertical)
- **Generate** — `Photograph: abstract gradient mesh. Composition: simple composition with one focal point. Lighting: low-key, moody directional light with deep shadows. Cool colour grade that sits on #101011, #0786ff. Photorealistic, natural textures, shallow depth of field, 35mm lens. Aspect ratio 4:5. No text, no letters, no logos, no watermarks, no brand marks or trademarked products, no recognisable real people.`
### Slot 2 · 2. Content, 4. Showcase, 5. Content, 8. Features → product UI (uncertain)
- Crypto & Web3 sections with many image elements — most likely product UI screenshots/mockups plus icons. Count: one consistent treatment across these sections. Aspect: 4:5. Look first: [ref 1](https://uidiscovery.com/media/captures/opensea/s-02.webp) [ref 2](https://uidiscovery.com/media/captures/opensea/s-04.webp) [ref 3](https://uidiscovery.com/media/captures/opensea/s-05.webp) [ref 4](https://uidiscovery.com/media/captures/opensea/s-08.webp)
- **Stock** — “laptop blank screen minimal desk”: [Unsplash](https://unsplash.com/s/photos/laptop-blank-screen-minimal-desk?orientation=landscape) · [Pexels](https://www.pexels.com/search/laptop%20blank%20screen%20minimal%20desk/?orientation=landscape) · [Pixabay](https://pixabay.com/images/search/laptop%20blank%20screen%20minimal%20desk/?orientation=horizontal)
- **Generate** — `Product-shot backdrop for a UI screenshot: smooth dark gradient from #101011 to #101011 with a soft #0786ff glow behind the centre, subtle floor shadow, empty centre area where a screenshot will be placed. Lighting: low-key, moody directional light with deep shadows. Aspect ratio 4:5. No text, no letters, no logos, no watermarks, no brand marks or trademarked products, no recognisable real people. No UI elements.`
- Build the UI itself in HTML/CSS with realistic sample data from YOUR product (or screenshot your real app). Don't generate UI as an image and don't reuse the reference's screenshots. Stock/AI is only for the backdrop or device frame.
### Slot 3 · 3. Statement, 6. Content, 7. Content → abstract 3D / gradient (uncertain)
- Dark Crypto & Web3 section with a few graphics — typically abstract 3D/gradient art or a product shot. Count: one consistent treatment across these sections. Aspect: 4:5. Look first: [ref 1](https://uidiscovery.com/media/captures/opensea/s-03.webp) [ref 2](https://uidiscovery.com/media/captures/opensea/s-06.webp) [ref 3](https://uidiscovery.com/media/captures/opensea/s-07.webp)
- **Stock** — “abstract dark gradient 3d”: [Unsplash](https://unsplash.com/s/photos/abstract-dark-gradient-3d?orientation=portrait) · [Pexels](https://www.pexels.com/search/abstract%20dark%20gradient%203d/?orientation=portrait) · [Pixabay](https://pixabay.com/images/search/abstract%20dark%20gradient%203d/?orientation=vertical)
- **Generate** — `Abstract 3D render: soft, glossy glass-like shapes and a smooth gradient in #0786ff and #ffffff on a #101011 background. Lighting: low-key, moody directional light with deep shadows; cool tone. Minimal and calm, generous negative space on one side for text. Aspect ratio 4:5. No text, no letters, no logos, no watermarks, no brand marks or trademarked products, no recognisable real people.`
### If the screenshots show a different style
Open the refs first and name what you actually see (photo / product UI / illustration / abstract gradient or 3D / type only). If it differs from the guess, switch routes — UI is built in code, type-only needs no image, otherwise:
- **illustration** — generate `Flat vector illustration: abstract gradient mesh, friendly simplified shapes, limited palette of #101011, #0786ff plus one soft neutral, plenty of empty background, consistent line weight, cool mood. Aspect ratio 3:2. No text, no letters, no logos, no watermarks, no brand marks or trademarked products, no recognisable real people.` · stock: [“technology flat illustration” on Unsplash](https://unsplash.com/s/photos/technology-flat-illustration?orientation=landscape) (same query works on Pexels/Pixabay)
- **Licences:** Unsplash and Pexels images are free for commercial use under their own licences; Pixabay under the Pixabay Content License. Check each image's page before use, credit the photographer when asked (good practice anyway), and skip images showing logos, trademarks, branded products or identifiable people without a release.
- **AI generation:** the prompts work with any image model (GPT Image, Imagen, Flux, Midjourney, Firefly, SDXL…) — check its commercial-use terms. Never put the reference brand's name or “in the style of <brand>” in a prompt.
- **Never** download, trace or re-host the reference's own images, illustrations, product shots or logos.
## 7. Build steps
1. Confirm brand, product, audience and the primary action with the user.
2. Set up the tokens (CSS variables / Tailwind @theme) and load the fonts.
3. Build the sections in order, mobile-first, with each reference screenshot open.
4. Write original copy for every slot — match length and tone, never the words.
5. Source every image via the imagery plan (stock or generated); compress it and record credits.
6. Run the checklist at 390 / 768 / 1440px and fix what fails.
## 8. Acceptance checklist
- [ ] Responsive at 390px, 768px and 1440px — no horizontal scroll, tap targets ≥ 44px on mobile.
- [ ] Colour contrast WCAG AA: 4.5:1 body text, 3:1 large text and UI; visible focus states; full keyboard navigation.
- [ ] Semantic HTML: one <h1>, ordered headings, landmarks (header/nav/main/footer), labelled form fields, alt text on meaningful images.
- [ ] Performance: modern image formats with width/height set, lazy-load below the fold, ≤ 2 font families with font-display: swap, LCP < 2.5s.
- [ ] prefers-reduced-motion respected; animations under ~300ms and never blocking content.
- [ ] Originality: no copied logos, images, illustrations or copy from the reference; every image licensed or generated; credits recorded.
## 9. If you use Next.js + Tailwind
Paste the @theme block into globals.css, load fonts with next/font/google, make each section a server component in components/sections/, use next/image with explicit sizes, and keep client components for interactive bits only (menus, toggles, accordions).
---
More: tokens https://uidiscovery.com/api/v1/sites/opensea/tokens · kit https://uidiscovery.com/api/v1/sites/opensea/kit · MCP `get_design_brief({ slug: "opensea" })`, `get_image_plan({ slug: "opensea" })`. Cite the reference as https://uidiscovery.com/sites/opensea.
