flowmanceSuperSonic Design System
SuperSonic is a clean, friendly agency site: a white page, near-black Inter Tight at weight 600, and soft warm-grey (#EDEDE9) blocks for buttons, cards and fields. It feels light and product-like rather than editorial. Colour comes only from the imagery: a glossy glass rocket in the hero, 3D renders and bright avatar circles.
Four signatures make it recognisable:
- Two-tone lead paragraphs. Big 28px / 600 paragraphs start in near-black #060609 and finish in grey #777777 mid-sentence (In the world of Webflow templates, SuperSonic sets / the pace with designs that captivate users.). The feature trio flips it: a grey 40% lead-in (Beautifully Designed.) and then black text.
- Warm-grey, not black, buttons. The main button is a #EDEDE9 block with near-black text and a 5px radius, never a dark fill.
- A perspective grid floor. The hero sits on a faint grey 3D grid that recedes to a horizon, with a pale blue-green glow behind the illustration.
- Rounded cards, near-square controls. Work and blog cards have 25px corners, testimonial cards 20px, while buttons stay at 5px; the wide about photo strip is square-cut.
SuperSonic is a light-only design.
Colors
Surfaces
#FFFFFFPage and section background (--white)
#EDEDE9Buttons, testimonial cards, form fields, menu overlay (--black-second)
#EDEDE9Input background
#060609Submit button on hover
Ink
#060609Text on primary
#060609Headings, strong text, nav icons (--black)
#777777Paragraphs and the second half of two-tone leads (--dark-grey)
#000000 · 40%Grey lead-ins in the feature trio (Fully Responsive.)
#000000Field labels, inputs, blog titles, footer tags
#FFFFFFMarquee titles running across work images
#FFFFFFText on inverse-canvas
Action
#EDEDE9The main button
Lines & effects
#0000001px checkbox borders
#0606092px link underlines, count badges, footer pills
Typography
Inter Tight · display-cta
The quick brown fox jumpsFooter CTA title, centred. 100.8px · 600 · 1.2
Inter Tight · headline-md
The quick brown fox jumpsLeft-aligned titles: About us, What they think. 38px · 600 · 1.1
Inter Tight · body-xl
The quick brown fox jumpsTwo-tone leads in the hero and about block. 28px · 600 · 1.4
Inter Tight · title-lg
The quick brown fox jumpsFeature trio text. 21px · 600 · 1.4
Inter Tight · label
The quick brown fox jumpsButtons. 19px · 600 · 1.05
Inter Tight · caption
The quick brown fox jumpsBase body, nav (field labels are 14 / 600). 14px · 500 · 1.43
Spacing & shape
| Purpose | Value |
|---|---|
| Container | max 1200px, centred |
| Section rhythm | .section is 130px top and bottom on white (80px at ≤991, 50px at ≤767 and ≤479) |
| Breakpoints | 991px, 767px and 479px, with a min-width: 768px set and one min-width: 1440px rule |
Spacing scale
| Token | Value | Preview |
|---|---|---|
xs | 8px | |
sm | 15px | |
md | 25px | |
lg | 30px | |
xl | 40px | |
2xl | 50px | |
3xl | 100px |
Layout spacing
| Token | Value | Preview |
|---|---|---|
section-top | 40px | |
gutter | 72px | |
nav-height | 110px | |
section | 130px | |
hero-bottom | 160px | |
hero-top | 180px |
Border radius
Surfaces
How the surfaces stack, from the page background up. Hex codes and roles are in Colors above.
Motion
| Fade-in on scroll | opacity 0 → 1, 1000ms or 1250ms outQuart |
| Headline line reveal | Lines start at y 200% and skewY 7°, then rise to y 0%, skewY 0° over 1100ms outQuint |
| Rise | y 40px → 0, 300ms ease, with opacity 0 → 1 |
| Slide-in | x/y offset to 0px, 1000ms outQuart |
| Float loop | The hero illustration drifts between x −20px, y 20px and x 20px, y −20px, 2000ms ease each way |
| Button hover | Size change 300ms ease, arrow slides in; background-colour change 300ms ease |
| Menu word roll | 74px mask, word moves out and a copy rolls in |
| Image hover | filter 300ms ease, scale 0.8 → 1 at 300ms outQuad on icons |
| Work marquee | White titles scroll sideways continuously across work cards |
Do’s and don’ts
- Use a white #FFFFFF page, #060609 headings at weight 600, and #EDEDE9 for buttons, cards and fields.
- Split large leads into a black first half and a #777777 second half, both 28px / 600.
- Keep buttons at a 5px radius with near-black text on #EDEDE9.
- Round image cards at 25px and testimonial cards at 20px.
- Centre two-word section titles at 65px.
- Let 3D renders and bright avatar circles bring the colour.
- Use a dark or coloured fill for the main button; only the submit turns #060609 on hover.
- Add drop shadows or card borders.
- Use #777777 for text under 18px, or on #EDEDE9 cards (about 3.9:1); use #060609 there.
- Use the 40% black ink-subtle for anything but short lead-ins at 21px or larger.
- Add a brand accent colour to the UI.
- Use weights below 500 or uppercase headings.
Example prompt
Any page in the SuperSonic style
More design systems like this
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Get All AccessUpgrade to All AccessHow to use the SuperSonic 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/supersonic.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