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Buio. A dark Web3 SaaS theme in white ink on near black.

Buio home with Own the web, Build without limits beside a grey gradient panel with concentric circles, the logo cloud, and two code windows for true ownership and decentralized security
Buio home features with circle, square and triangle line shapes, hexagon, diamond and concentric circles below, and the start of the code feature
Buio home with a contract code window beside four ruled features, and the network chart over four quarters with wallets, value settled, chains and uptime
Buio second home with The chain is yours, Verify everything centered inside faint concentric rings, then contracts that run themselves beside concentric circle and diamond shapes
Buio network status with each service in a ruled ledger showing its state and 90 day uptime, past incidents and the footer
Buio help center with Answers for every chain, links to the knowledge base and network status, and every topic in ruled rows
Buio integrations directory with Chargebee, Stripe, Recurly, Sage, Xero and QuickBooks logos on grey gradient panels
Buio integration page for Stripe with its details sidebar, the setup steps and a panel listing what Buio can access
Buio changelog with each release dated in the first column beside a grayscale image, its title and a link to the update
Buio customers page with a wall of customer logos, the Airbnb story with its results and details, and four stats
Buio customer story for GitHub with its details strip and ruled rows for about, challenge, solution, numbered results and the story
Buio careers page with open positions in a ledger by team and location, why we build and six benefits
Buio whitepaper cover with How Buio works and six numbered chapters in ruled rows with their descriptions
Buio whitepaper chapter on architecture with a sticky chapter list, the text on consensus, execution and layer two, and previous and next links

About Buio. What it is and how it works.

Buio is a dark Web3 SaaS template built with Astro and Tailwind CSS. White ink on near black, hairline ledgers on a 4-column grid and Geist throughout, made for protocols, wallets and developer tools.

All pages

Static pages

  • - Landing Page x2
  • - Status
  • - Team
  • - Knowledge Base
  • - Contact
  • - Sign In
  • - Sign Up
  • - Error 404

Content collections

  • - Blog
  • - Jobs
  • - Changelog
  • - Customers
  • - Help Center
  • - Whitepaper
  • - Legal Pages
  • - Integrations

Auto-generated index and detail pages for each entry.

What's included

This theme

  • - Megamenu
  • - Smooth Scroll
  • - Line Shapes
  • - Reusable Components
  • - Content Collections
  • - SEO Optimized
  • - Style Guide
  • - Astro RSS
  • - Astro SEO
  • - Astro Sitemap
  • - Tailwind CSS Forms
  • - Tailwind Typography

Every theme

  • - GitHub Access
  • - AGENTS.md
  • - SKILLS.md
  • - Cursor rules
  • - Lifetime access
  • - Lifetime updates
  • - Lifetime support
Tech stack
Details

Versions

  • - Astro v7.2.2
  • - Tailwind v4.3.3
  • - Released 09.22
  • - Redesign 10.26
  • - Updated 10.26
See Changelog

Lighthouse

  • - Performance 100
  • - Accessibility 91
  • - Best Practices 100
  • - SEO 95

Buio: the dark Web3 template that reads like a ledger

Buio is a Web3 SaaS theme for protocols, wallets and developer tools that want to look exact. White ink on near black, a grey second line on every heading and hairline rules on a 4-column grid, so every number and every line of text sits where it should.

Why Buio

  • Built for Web3 startups, protocols, wallets and developer tools
  • Pages for status, customers, integrations, changelog, help center, jobs, team and blog
  • A chaptered whitepaper with a cover, a sticky chapter nav and previous and next links
  • A megamenu with featured cards that pick up your latest release and blog post
  • A 4-column guidelines grid on every page, with ledgers, stats and charts set on the lines
  • Static line shapes and grayscale photos instead of glows and widgets
  • Astro-fast performance with Lenis smooth scroll
  • SEO-ready with Astro SEO, Sitemap and RSS

Modern color system

Buio’s palette is a handful of OKLCH color tokens: one ground, one ink, two greys and a white accent. Change them in one file and the whole site follows.

What you get

  • Astro v7 + Tailwind CSS v4 setup
  • Content collections for blog, changelog, customers, integrations, help center, jobs, whitepaper and legal pages
  • Reusable sections, a style guide under /system and an AI design skill for Cursor, Claude Code and Codex
  • Ongoing theme updates

One-time license: pay once, launch forever

Buy once. Use forever. Launch your Web3 product with a site that shows its work.

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Full Access

Personal

1 seat

$99 / $198

One-time payment, plus applicable taxes.

All the themes, for solo builders.

  • All 51 Astro themes

  • All 50 Sanity CMS themes

  • All 50 EmDash CMS themes

  • Commercial license

  • GitHub repository access

  • AGENTS, SKILLS and RULES

  • Use in unlimited projects

  • New theme drops

  • Ongoing updates

  • Email support

Buy for $99

Team

10 seats

$299 / $598

One-time payment, plus applicable taxes.

All the themes, for the whole team.

  • All 51 Astro themes

  • All 50 Sanity CMS themes

  • All 50 EmDash CMS themes

  • Commercial license

  • GitHub repository access

  • AGENTS, SKILLS and RULES

  • Use in unlimited projects

  • New theme drops

  • Ongoing updates

  • Email support

Buy for $299

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What customers and supporters say about Lexington Themes.

Read all reviews

“Damn, they actually look super nice!”

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Jonny Burger

Founder of Remotion.dev

“Michael has been dropping some amazing premium themes for Astro lately.”

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Fred Schott

CEO of Astro.build

“Chief, nice work.”

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Guillermo Rauch

vercel.com

“Love the design work”

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Steve Ruiz

Founder at tldraw.com