Revolut's website is fintech confidence distilled into pixels — a design system that communicates "your money is in capable hands" through massive typography, generous whitespace, and a disciplined neutral palette. The visual language is built on Aeonik Pro, a geometric grotesque that creates billboard-scale headlines at 136px with weight 500 and aggressive negative tracking (-2.72px). This isn't subtle branding; it's fintech at stadium scale.
The color system is built on a comprehensive `--rui-*` (Revolut UI) token architecture with semantic naming for every state: danger (`#e23b4a`), warning (`#ec7e00`), teal (`#00a87e`), blue (`#494fdf`), deep-pink (`#e61e49`), and more. But the marketing surface itself is remarkably restrained — near-black (`#191c1f`) and pure white (`#ffffff`) dominate, with the colorful semantic tokens reserved for the product interface, not the marketing page.
What distinguishes Revolut is its pill-everything button system. Every button uses 9999px radius — primary dark (`#191c1f`), secondary light (`#f4f4f4`), outlined (`transparent + 2px solid`), and ghost on dark (`rgba(244,244,244,0.1) + 2px solid`). The padding is generous (14px 32px–34px), creating large, confident touch targets. Combined with Inter for body text at various weights and positive letter-spacing (0.16px–0.24px), the result is a design that feels both premium and accessible — banking for the modern era.
**Key Characteristics:**
- Aeonik Pro display at 136px weight 500 — billboard-scale fintech headlines
- Near-black (`#191c1f`) + white binary with comprehensive `--rui-*` semantic tokens
| Card Title | Aeonik Pro | 32px (2.00rem) | 500 | 1.19 (tight) | -0.32px | Card headings |
| Feature Title | Aeonik Pro | 24px (1.50rem) | 400 | 1.33 | normal | Light headings |
| Nav / UI | Aeonik Pro | 20px (1.25rem) | 500 | 1.40 | normal | Navigation, buttons |
| Body Large | Inter | 18px (1.13rem) | 400 | 1.56 | -0.09px | Introductions |
| Body | Inter | 16px (1.00rem) | 400 | 1.50 | 0.24px | Standard reading |
| Body Semibold | Inter | 16px (1.00rem) | 600 | 1.50 | 0.16px | Emphasized body |
| Body Bold Link | Inter | 16px (1.00rem) | 700 | 1.50 | 0.24px | Bold links |
### Principles
- **Weight 500 as display default**: Aeonik Pro uses medium (500) for ALL headings — no bold. This creates authority through size and tracking, not weight.
- **Billboard tracking**: -2.72px at 136px is extremely compressed — text designed to be read at a glance, like airport signage.
- **Positive tracking on body**: Inter uses +0.16px to +0.24px, creating airy, well-spaced reading text that contrasts with the compressed headings.
**Shadow Philosophy**: Revolut uses ZERO shadows. Depth comes entirely from the dark/light section contrast and the generous whitespace between elements.
## 7. Do's and Don'ts
### Do
- Use Aeonik Pro weight 500 for all display headings
- Apply 9999px radius to all buttons — pill shape is universal
- Use generous button padding (14px 32px)
- Keep the palette to near-black + white for marketing surfaces
- Apply positive letter-spacing on Inter body text
### Don't
- Don't use shadows — Revolut is flat by design
- Don't use bold (700) for Aeonik Pro headings — 500 is the weight
- Don't use small buttons — the generous padding is intentional
- Don't apply semantic colors to marketing surfaces — they're for the product
## 8. Responsive Behavior
### Breakpoints
| Name | Width | Key Changes |
|------|-------|-------------|
| Mobile Small | <400px|Compact,singlecolumn|
| Mobile | 400–720px | Standard mobile |
| Tablet | 720–1024px | 2-column layouts |
| Desktop | 1024–1280px | Standard desktop |
| Large | 1280–1920px | Full layout |
## 9. Agent Prompt Guide
### Quick Color Reference
- Dark: Revolut Dark (`#191c1f`)
- Light: White (`#ffffff`)
- Surface: Light (`#f4f4f4`)
- Blue: Revolut Blue (`#494fdf`)
- Danger: Red (`#e23b4a`)
- Success: Teal (`#00a87e`)
### Example Component Prompts
- "Create a hero: white background. Headline at 136px Aeonik Pro weight 500, line-height 1.00, letter-spacing -2.72px, #191c1f text. Dark pill CTA (#191c1f, 9999px, 14px 32px). Outlined pill secondary (transparent, 2px solid #191c1f)."
- "Build a pill button: #191c1f background, white text, 9999px radius, 14px 32px padding, 20px Aeonik Pro weight 500. Hover: opacity 0.85."
### Iteration Guide
1. Aeonik Pro 500 for headings — never bold
2. All buttons are pills (9999px) with generous padding
3. Zero shadows — flat is the Revolut identity
4. Near-black + white for marketing, semantic colors for product
