flowmanceBrün Design System
Brün is a loud, typographic agency site. It is almost entirely black on white, set in heavy uppercase Cabinet Grotesk at poster sizes, with solid words stacked against outlined words. One colour breaks in: a signal yellow (#FFEA00) that floods the whole page while the horizontal project slider is in view. There are no boxes and no shadows; actions are bold underlined text.
Four signatures make it recognisable:
- Solid word, outline word. Big titles mix filled black words with white words outlined in 1px black (DIGITAL / outlined DESIGN / AGENCY; OUR / outlined SKILLS). The outline is a text-shadow on white text (.title-line).
- Staggered hero. The three hero words step right on each line, at 144px weight 900 uppercase with 7px tracking, over a two-line grey lead and one underlined Let's Talk link.
- The yellow takeover. As you reach the projects, the page background fades from white to #FFEA00 (800ms outExpo) and a row of hard-edged, saturated photos slides sideways. The closing Ready to take off? band is yellow too.
- Underline links, not buttons. Let's Talk and every other in-content action is 19px weight-700 black text over a 1px grey #B9BBC8 track; a black line grows across it on hover.
Colors
Surfaces
#FFFFFFPage background
#ECECECThe 60px back-to-top circle; the only grey surface
#000000Full-screen menu and footer
#FFFFFFForm inputs and their 1px border
#E6E6E6With field: Form inputs and their 1px border
Ink
#000000Text on primary
#000000Text on accent
#000000Display type, titles, links, skill bars, the thick rule above the metrics
#494949Hero lead and form input text (--dim-grey)
#535353Paragraphs (the p default, 18px)
#696969Testimonial quotes, metric labels, categories
#FFFFFFProject titles and tags on photos
#FFFFFF · 80%Muted text on media
#FFFFFFText on inverse-canvas
#FFFFFF · 80%Footer paragraphs
#FFFFFF · 52%Small notes beside menu links
Action
#FFEA00The yellow pill submit Send Proposal
#FFEA00The page background during the project slider, the Ready to take off? band, the dark button's hover
Lines & effects
#B9BBC8The 1px track under every underline link (--silver)
#000000The growing underline, skill bars and section rules
#222222 · 40%Darkening layer on project cards
#FFFFFF · 20%1px rules under menu links
Typography
Cabinet Grotesk · display-hero
The quick brown fox jumpsHero DIGITAL DESIGN AGENCY, one word per line. 144px · 900 · 1.0 · 7px
Cabinet Grotesk · headline-metric
The quick brown fox jumpsMetric numbers 7, 100, 99%, 1000+. 47px · 700 · 0.94
Cabinet Grotesk · title-lg
The quick brown fox jumpsRecent Project. 24px · 700 · 1.25
Cabinet Grotesk · body-lg
The quick brown fox jumpsHero lead. 24px · 400 · 1.17
Cabinet Grotesk · label-link
The quick brown fox jumpsUnderline links (Let's Talk). 19px · 700 · 1.16
Cabinet Grotesk · caption
The quick brown fox jumpsMetric labels and categories. 17px · 500 · 1.41
Spacing & shape
| Purpose | Value |
|---|---|
| Container | max 1200px, centred; sections add 5% side padding (72px at 1440px) |
| Section rhythm | 100px top and bottom; the testimonials section 200px; the blog section is 100vh with 120px top and 60px bottom; the yellow CTA band 85px |
| Breakpoints | 991px, 767px and 479px, plus a min-width: 768px set |
Spacing scale
| Token | Value | Preview |
|---|---|---|
xs | 10px | |
sm | 16px | |
md | 30px | |
lg | 40px | |
xl | 50px | |
2xl | 100px |
Layout spacing
| Token | Value | Preview |
|---|---|---|
section-side | 72px | |
hero-top | 80px | |
section-band | 85px | |
section | 100px | |
hero-bottom | 140px | |
section-testimonials | 200px |
Border radius
Surfaces
How the surfaces stack, from the page background up. Hex codes and roles are in Colors above.
Motion
| Page turns yellow | Background colour white → #FFEA00 and back, 800ms outExpo, when the project slider enters and leaves |
| Text colour swap | 500ms outExpo (dark type on the yellow section) |
| Link underline grow | Width 0 → 100%, 500ms; skill bars fill with width over 800ms outExpo |
| Slide-in reveal | x -30px → 0 with opacity 0 → 1, 500ms outExpo |
| Fade-up reveal | Opacity 0 → 1 over 1000ms outQuart, move to 0px over 1000ms outQuart |
| Custom cursor | Follows the mouse over project cards; scales 0 → 1 over 600ms outExpo |
| Project row | Moves on x by ±50vw as you scroll |
| Menu open | Full-screen overlay display swap, background 400ms outExpo |
| Menu link hover | Colour and outline swap, 100ms |
| Card hover | transform 0.5s |
Do’s and don’ts
- Set display titles in Cabinet Grotesk 900 uppercase with 3–7px tracking, and pair a solid word with an outlined one.
- Keep the page black #000000 on white #FFFFFF, and bring in #FFEA00 only as a full background (project section, CTA band).
- Use underline links (19px weight 700 over a 1px #B9BBC8 track) for actions.
- Keep every image and card at 0px radius with a single colour-field subject.
- Offset hero words to the right line by line.
- Use outExpo for reveals and the background swap, 500–800ms.
- Add boxed buttons everywhere; keep filled pills to the form submit.
- Use yellow for text, icons or thin accents; it doesn't read on white.
- Add shadows, rounded cards or gradients on UI.
- Use more than one typeface or weights below 400.
- Track body text; tracking belongs to uppercase display only.
- Use the unused #FF3A1B or #00663F as extra accents.
Example prompt
Any page in the Brün style
More design systems like this
Agency design systems, the same colors first.
Bring any of them to your AI tool
All Access unlocks all 398 design systems, ready for Claude, ChatGPT, Gemini, Cursor, v0 and Lovable, plus 400+ templates on all 5 platforms.
Get All AccessUpgrade to All AccessHow to use the Brün design system
Pick a file to see what it’s for and where it goes.
What it is
The whole design system in one markdown file, written for AI: every color, type style, spacing value, component and motion rule, plus do's, don'ts and a ready prompt.
Best for
Claude, ChatGPT, Gemini, Cursor and v0, or any other AI tool that builds pages or code.
How to use it
- Put
DESIGN.mdin your project and mention it in your request, or save it as.cursor/rules/brun.mdc - For the rule file, start it with a front-matter block that sets
alwaysApply: true, so every chat uses it - Ask: “Build a pricing page using DESIGN.md.” Cursor follows the colors, fonts, spacing and rules
- Put
DESIGN.mdin the project root - Add one line to
CLAUDE.md: “Follow DESIGN.md for all UI.” - Ask for any page or component; Claude reads the file first
- Attach
DESIGN.mdto the chat (or paste it in) - Ask: “Build a landing page in this design system.”
- Keep the file in the chat or project knowledge, so follow-up pages stay on style
What it is
Every token as data, in the W3C Design Tokens format: colors with their roles, type styles, radius, spacing, and component tokens that point at them.
Best for
Figma (Tokens Studio), Style Dictionary and other design-token tools, and build scripts.
How to use it
- In Figma, open Tokens Studio, choose Import, and pick
tokens.json - Or point Style Dictionary’s
sourceat it to generate tokens for any platform - In code, import it like any JSON file
What it is
A Tailwind CSS v4 theme: every color, font, type style, radius and spacing value becomes a Tailwind utility, like bg-canvas, text-headline-lg or rounded-md.
Best for
Tailwind v4 projects, and AI builders that write Tailwind (v0, Lovable, Bolt).
How to use it
- Save
theme.cssnext to your main CSS file - Import it after Tailwind:
@import "tailwindcss"; @import "./theme.css"; - Use the classes:
bg-canvas text-ink rounded-md p-lg
What it is
The same tokens as plain CSS variables on :root. Component values point at the color variables, so changing one color updates everything that uses it.
Best for
Any website: plain CSS, Webflow custom code, Framer, WordPress.
How to use it
- Add it to your stylesheet, or in Webflow paste it into Site settings → Custom code inside a
<style>tag - Use the variables anywhere:
color: var(--color-ink) - Change a token once and every place that uses it follows