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πŸ”’carbon.design
Carbon
104 design seeds. One button. Zero design skills required.

Your product works. Now make it beautiful.

SeedFlip gives you curated design seeds β€” fonts, colors, shadows, the works β€” applied to a real page in one click. Export as CSS, Tailwind, shadcn/ui, or a complete DESIGN.md your AI agent actually understands. Or plug it straight into your editor with the MCP server.

β€œConsider me flipped.”

β€” @nikkimitss, Passive Studios

Flip β†’
Watch it work ↓

Works with your stack

104
CURATED SEEDS
98
PREMIUM FREE FONTS
7
EXPORT FORMATS
Aa
Real type pairings.
Google Fonts loaded live. Heading + body combos that actually work together β€” weights, spacing, and scale already dialed in. Not a font picker. A font decision.
β—‘
Complete color systems.
Background, surface, text, muted, accent, accent-soft, borders, gradients. Every seed has 10+ coordinated tokens. Not five swatches on a mood board. A system.
{ }
Ship-ready exports.
CSS Variables. Tailwind Config. shadcn/ui theme. IDE rule files. Or connect the MCP server and let your agent pull seeds directly. Seven formats. Zero guesswork.
β€œ

β€œAI gave every developer the power to build. It did not give them the power to design. The code was never the bottleneck. The design was. It still is.”

CURRENT SEED TYPOGRAPHY
Inter
Every seed pairs a heading and body font that actually belong together. Weights, spacing, and scale β€” already decided. You just flip.
LOCK & FLIP
Keep what you love. Flip the rest.
Lock any category β€” type, palette, shape, or atmosphere β€” and flip everything else. Thousands of combinations from 104 curated seeds. PRO
THE LAB
Extract the DNA.
Every way to take your seed home. CSS Variables. Tailwind Config. shadcn/ui theme. IDE rule files for Cursor, Claude, and Windsurf. Or connect the MCP server and let your agent pull seeds on demand.
THE ARCHIVE
104 seeds. All killer. No filler.
Browse every design seed in the collection. Dark, light, neon, editorial, brutalist, minimal β€” each one hand-curated with real Google Fonts and a full DESIGN.md. Your daily flip lands in your inbox every morning.
β€œ

I described the same design to Claude four different times and got four completely different results. Not one of them looked right. The problem was never my prompting. I didn’t have a design seed. I had adjectives. SeedFlip gave me the actual values. First try. Done.

J
Jamie K.
Indie Hacker
β€œ

My cofounder finally said it out loud. β€œThis looks like every other app on Product Hunt.” He was right. Same zinc palette. Same Inter font. Same everything. Pulled a SeedFlip seed into our Tailwind config and the next build looked like a different company made it.

P
Priya S.
Technical Cofounder
β€œ

I’ve shipped six projects and every single one looked like a developer made it. Because one did. Plugged the MCP server into Cursor, told it to pull something editorial and warm. Twenty minutes later I had a product I’d actually screenshot. No designer. No Figma file. Just the right inputs.

M
Marcus C.
Design Engineer

Simple pricing.

Free gets you flipping. Pro gets you shipping.

Free
$0
forever
βœ“ Unlimited flips
βœ“ 104 curated seeds
βœ“ CSS Variables export
βœ“ CLI + MCP server
βœ“ Edit mode
βœ“ Full Archive access
Start Flipping β†’
Just your email. That's it.
Pro
$19/mo
cancel anytime
Everything in Free, plus:
βœ“ Lock fonts, colors, shape & atmosphere
βœ“ DESIGN.md export
βœ“ Tailwind + shadcn/ui exports
Get Pro β†’
DESIGN.md is a complete design system document. Creative direction, exact tokens, and implementation code. Drop it in your repo and your AI builds to spec.

You're one flip away from looking like you hired a designer.

104 curated design seeds. Real fonts. Real color theory. AI-ready prompts that actually work. No Figma file. No design committee. No three-week sprint to pick a gray.

Flip β†’
SEED
Carbon
VIBE
Nothing wasted.
BEST FOR
developer documentation portals with clean code snippetsminimal personal portfolio sites for designerschangelog and release notes pages with dense contentopen-source project landing pages
01pure monochrome palette forces typography to carry hierarchy
02black accent removes color as distraction
03ultra-minimal shadows keep focus on content
04tight letter-spacing creates dense authoritative headlines
05near-white background is warmer than pure white
Skip if:β€’ your brand relies on color to communicate category or status. this monochrome palette has no room for semantic colorβ€’ you need multiple data series in charts. a pure black-and-white system cannot distinguish between 3+ series visuallyβ€’ your product targets users who need visual warmth. pure monochrome with black accent reads as cold and impersonal
104 design seeds. One button. Zero design skills required.

Your product works. Now make it beautiful.

SeedFlip gives you curated design systems β€” fonts, colors, shadows, the works β€” applied to a real page in one click. Export as CSS, Tailwind, or a complete DESIGN.md your agent actually understands.

β€œConsider me flipped.”

β€” @nikkimitss, Passive Studios

Flip β†’
Watch it work ↓

Works with your stack

104
CURATED SEEDS
98
PREMIUM FREE FONTS
7
EXPORT FORMATS
Aa
Real type pairings.
Google Fonts loaded live. Heading + body combos that actually work together β€” weights, spacing, and scale already dialed in. Not a font picker. A font decision.
β—‘
Complete color systems.
Background, surface, text, muted, accent, accent-soft, borders, gradients. Every seed has 10+ coordinated tokens. Not five swatches on a mood board. A system.
{ }
Ship-ready exports.
CSS Variables. Tailwind Config. Or a complete DESIGN.md that tells Cursor exactly what to build. Paste it. Watch it materialize. Take all the credit.
β€œ

β€œEvery AI app has the same auth flow, the same Stripe checkout, and the same shadcn components. Design is the last unfair advantage you haven't used yet.”

CURRENT SEED TYPOGRAPHY
Inter
Every seed pairs a heading and body font that actually belong together. Weights, spacing, and scale β€” already decided. You just flip.
LOCK & FLIP
Keep what you love. Flip the rest.
Lock any category β€” type, palette, shape, or atmosphere β€” and flip everything else. Thousands of combinations from 104 curated seeds. PRO
THE LAB
Extract the DNA.
Three ways to take your seed home. CSS Variables for purists. Tailwind Config for the utility-class faithful. Or DESIGN.md. A complete design system document your AI agent can follow from the first component. Paste it into Cursor. Watch a styled site materialize.
THE ARCHIVE
104 seeds. All killer. No filler.
Browse every design system in the collection. Dark, light, neon, editorial, brutalist, minimal β€” each one hand-curated with real Google Fonts and a full DESIGN.md. Your daily flip lands in your inbox every morning.
β€œ

I was mass-prompting Claude at 4am trying to describe the β€œvibe” I wanted. Turns out the vibe was 17 CSS variables I didn’t know existed.

J
Jamie K.
Indie Hacker
β€œ

Sent a SeedFlip export to my cofounder. His response was β€œwhy does our app look like a real company now.” We launched that week.

P
Priya S.
Technical Cofounder
β€œ

Tried the β€œmake my app look like Super Unicorn X, Y, Z” prompts. Didn’t work. This did. Wish I found it 12 projects ago.

M
Marcus C.
Design Engineer

Simple pricing.

Free gets you flipping. Pro gets you shipping.

Free
$0
forever
βœ“ Unlimited flips
βœ“ 104 curated seeds
βœ“ CSS Variables export
βœ“ Full Archive access
Start Flipping β†’
Pro
$19/mo
cancel anytime
Everything in Free, plus:
βœ“ Lock fonts, colors, shape & atmosphere
βœ“ DESIGN.md export
βœ“ Tailwind + shadcn/ui exports
Get Pro β†’

You're one flip away from looking like you hired a designer.

104 curated design seeds. Real fonts. Real color theory. AI-ready prompts that actually work. No Figma file. No design committee. No three-week sprint to pick a gray.

Flip β†’

Carbon is the design equivalent of showing up in a black t-shirt and letting your work speak for itself. No accent color. No gradient. No opinion about whether you should feel warm or cool or playful. Just black, white, and every gray in between. The content does the talking.

There's a suspicion a lot of builders have. That all those trendy color palettes and bouncy animations are just hiding mediocre products underneath.

Carbon confirms that suspicion. When you strip away every decoration, what's left has to be good. The typography has to carry weight. The spacing has to be perfect. The hierarchy has to be obvious without a single color cue.

If you're building docs, a portfolio, or a SaaS product that competes on clarity, Carbon is the seed that says "we don't need tricks."

The DNA.
Why Carbon works. Every decision, unpacked.
TYPOGRAPHY
Inter
Weight: 600
?
Β·Spacing: -0.03em
?
Β·Inter

Inter for everything. Headings and body. One font doing all the work. In a monochrome system, the typography IS the design. Size, weight, and spacing create every bit of hierarchy. There's no accent color to fall back on. No bold gradient to bail you out.

The tight letter-spacing on headings creates density. Dense headings read as authoritative. They feel like they were set by someone who sweats the details. That's the whole brand promise of Carbon in a single typographic choice.

PALETTE
background#FAFAFA
surface#FFFFFF
text#000000
muted#666666
accent#000000
border#EAEAEA
?
Chart
?
Status
?
text / bg20.1:1 AA
?
accent / bg20.1:1 AA
?

Pure monochrome. The background is a warm near-white. Not stark, not cold. The text is pure black. Maximum contrast. Maximum readability. The accent color is also black. That's the move that makes Carbon feel intentional instead of lazy. Black buttons, black links, black interactive elements. Color is a distraction this system refuses to participate in.

Every shade of gray between those poles earns its place. The borders are whisper-light. The muted text is medium gray. Nothing is arbitrary. When you only have one axis to work with, every value matters.

SHAPE
6px
8px
12px
?
Moderate rounding. Not sharp enough to feel brutalist. Not soft enough to feel playful. The eight-pixel radius is the typographic equivalent of "no comment." It's not making a statement. It's staying out of the way so the content can make one.
ATMOSPHERE
sm
?
md
?
Ultra minimal
?
Almost invisible shadows. Elements are defined by their borders and spacing, not by depth. This is a flat system on purpose. When you remove depth as a tool, you're forced to create hierarchy through content alone. That's the discipline Carbon demands. And the reason everything built with it feels intentional.
Rip This.
Export Carbon as code, tokens, or a DESIGN.md for your AI agent.
/* Typography */
--font-heading: 'Inter', sans-serif;
--font-body: 'Inter', sans-serif;
--font-heading-weight: 600;
--letter-spacing: -0.03em;
/* Palette */
--color-bg: #FAFAFA;
--color-surface: #FFFFFF;
--color-text: #000000;
--color-text-muted: #666666;
--color-accent: #000000;
--color-accent-soft: rgba(0,0,0,0.05);
--color-border: #EAEAEA;
/* Shape */
--radius: 8px;
--radius-sm: 6px;
--radius-xl: 12px;
/* Depth */
--shadow: 0 2px 4px rgba(0,0,0,0.05);
--shadow-sm: 0 1px 2px rgba(0,0,0,0.04);

Drop your email to rip the full DNA.

Tailwind, shadcn/ui & DESIGN.md are Pro exports. Get Pro β†’
Share This.
Send Carbon to your team or post it to X.
X PREVIEW
Y
You@youΒ·just now
Vibe coded my app in days. Designed it in seconds. Flip. Rip. Ship. seedflip.co/seed/carbon
Inter
ABCDEFGHIJKLM
abcdefghijklm
0123456789 !@#
Body: Inter
✦ seedflip.co
#FAFAFA
#FFFFFF
#000000
Aa
radius: 8px Β· Ultra minimal
seedflip.co
3
12
47
1.2K
IG PREVIEW
Typography
Inter
Nothing wasted.
in Inter 13pt
600 / -0.03em
Colors
Accent
#000000
Surface
#FFFFFF
Text
#000000
Border
#EAEAEA
Shape & Atmosphere
Heading component
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor.
Action button
Carbon
Inter + Inter
seedflip.co
Typography
Inter
Nothing wasted.
in Inter 13pt
600 / -0.03em
Colors
Accent
#000000
Surface
#FFFFFF
Text
#000000
Border
#EAEAEA
Shape & Atmosphere
Heading component
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor.
Action button
Carbon
Inter + Inter
seedflip.co
Typography
Inter
Nothing wasted.
in Inter 13pt
600 / -0.03em
Colors
Accent
#000000
Surface
#FFFFFF
Text
#000000
Border
#EAEAEA
Shape & Atmosphere
Heading component
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor.
Action button
Carbon
Inter + Inter
seedflip.co
LINK
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KEEP READING
Cursor Rules Design System→Design Tokens to IDE Rule Files→What Are Design Seeds→