Saturn Design System
Saturn is a tidy, modular UI-kit site for agencies. It pairs a heavy, rounded display face (Dosis 700) for headlines and spaced uppercase labels with plain Roboto for reading text, and it uses one saturated colour, electric blue #4830E6, for buttons, a full-width band and small square accents. Corners are square almost everywhere, cards are pale grey #F5F5F7, and the published home is a showcase of the kit's own pages.
Four signatures make it recognisable:
- The scribble ring. One word in a headline is circled by a hand-drawn blue ellipse (with-scibble image): great website., Create your website with Saturn.
- Square blue buttons with an arrow. Buttons are sharp-cornered, 60px tall, uppercase Dosis with 1px tracking and a 20px arrow icon on the right that nudges further right on hover.
- Underlined eyebrows. Every section opens with a small uppercase Dosis label (UI KIT TEMPLATE, LANDING PAGE) sitting over a 2px black rule exactly as wide as the text, centred or left-aligned with the heading.
- Pixel squares. Small solid squares (60px and 40px, blue or black) sit on corners of images and the hero, like pixels breaking out of the frame.
Saturn is light, with one blue band and a silver hero.
Colors
Surfaces
#FFFFFFPage background, nav, screenshot cards
#F5F5F7Demo page cards and the BUILD YOUR OWN WEBSITE label bar
#C5C7CEThe silver intro hero (the --silver variable) and its fade overlays
#4830E6The blue components-and-features band
Ink
#FFFFFFButton text and the arrow icon
#000000Text on secondary
#000000Headlines, nav, labels, the go-top square; the fill behind the Instagram row (.instagram-section)
#000000Paragraphs are full black Roboto 500
#6D6D6DThe small note in the label bar (Copy/Paste…)
#FFFFFFText on inverse-canvas
#FFFFFFAction
#4830E6Filled buttons, pixel squares, the scribble ring
#FFFFFFThe white button (STYLE GUIDE, FOLLOW @SATURN)
Lines & effects
#E1E1E1 · 70%The footer's bottom rule
#0000002px eyebrow rules, the 3px left edge of the label bar
Typography
Dosis · display-hero
The quick brown fox jumpsYou deserve a great website. 88px · 700 · 0.88
Dosis · headline-md
The quick brown fox jumpsFollow us on Instagram. 38px · 700 · 1.05
Dosis · title-lg
The quick brown fox jumpsFeature titles on the blue band (100+ Components). 28px · 700 · 1.07
Dosis · logo
The quick brown fox jumpsS A T U R N (20px / 30px in the footer). 26px · 700 · 1.54 · 10px
Roboto · body-lg
The quick brown fox jumpsHero lead. 24px · 500 · 1.33
Roboto · label-lg
The quick brown fox jumpsComponent links on the blue band. 19px · 700 · 1.26
Spacing & shape
| Purpose | Value |
|---|---|
| Container | max 1130px, centred; sections add 5% side padding (72px at 1440px) |
| Section rhythm | 100px top and bottom; 80px at ≤767px and 60px at ≤479px |
| Breakpoints | 991px, 767px and 479px |
Spacing scale
| Token | Value | Preview |
|---|---|---|
xs | 7px | |
sm | 20px | |
md | 30px | |
lg | 40px | |
xl | 50px | |
2xl | 100px |
Layout spacing
| Token | Value | Preview |
|---|---|---|
band | 70px | |
gutter | 72px | |
nav-height | 74px | |
section | 100px |
Border radius
Surfaces
How the surfaces stack, from the page background up. Hex codes and roles are in Colors above.
Motion
| Button hover | Arrow background-position 85% → 90%, all 0.3s |
| Demo card hover | Opacity 1 → 0.7, 300ms |
| Screenshot hover | Shadow alpha 10% → 20%, 300ms |
| Nav link hover | Opacity → 0.6, 200ms |
| Dropdown carets | Rotations, 300ms ease |
| Fade-up on scroll | y −20px → 0, opacity 0 → 1, 300–500ms ease |
| Image hover zoom | scale 1 → 1.1, 400ms ease |
| Search panel | Height 0 → open, 500ms |
| Hero screenshot wall | "while scrolling in view" moves on the screenshot columns |
Do’s and don’ts
- Use #4830E6 for the main button, the blue band and the pixel squares only.
- Set headlines in Dosis 700 with line height under 1.0 (88/77px hero, 65/63px CTA) and paragraphs in Roboto 17px weight 500.
- Start each section with an uppercase Dosis eyebrow over a 2px black rule.
- Keep buttons square, 60px tall, with a trailing 20px arrow that slides on hover.
- Circle one key word per headline with the scribble ring and 20px side padding.
- Put grouped items on #F5F5F7 cards with 45px padding and no radius.
- Round buttons or cards; only thumbnails get 3px corners.
- Add a second colour from the unused variables (green #67AE8C, purple #9974DA, steel blue #0086AA).
- Use #6D6D6D (ink-subtle) on the silver #C5C7CE hero; keep it on white or #F5F5F7 at 15px+.
- Add shadows to anything but screenshot cards (0 18px 24px at 10%).
- Set Roboto in uppercase or Dosis labels in sentence case.
- Invent a hover colour for the blue button; only the arrow moves.
Example prompt
Any page in the Saturn style
More design systems like this
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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 Saturn 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/saturn.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






