hono.dev is built on a pure-white canvas (rgb(255, 255, 255)).
The system uses rgb(246, 246, 247) as a near-neutral accent (low saturation).
Moderately rounded CTAs (8px) — modern SaaS standard, neither sharp nor pill alongside -apple-system as the primary typeface.
A restrained elevation system (2 distinct shadows) — shadows reserved for the few elements that must lift off the page.
Interactions are smoothed by transitions across many elements, with little or no keyframe animation.
Maintain nav height at 64px — consistent vertical space for the navigation bar
Transition button background to Pure White (`#ffffff`) on hover — this is the extracted interactive state
Include exactly 2 CTAs in the hero (primary + secondary) — this design pattern is multi-action, not single-purpose
Use a 5-column grid on desktop — density matters for this content type
Don't
Don't use pure black (`#000000`) for text — the near-black adds warmth
Don't invent new shadow values — use only the extracted shadow levels
Don't introduce additional saturated accent colors — the palette is intentionally controlled
Don't collapse or hide the nav on scroll without an explicit scroll-triggered animation — the design uses fixed nav presence
Don't use opacity or brightness filter for button hover — the design uses an explicit background color change
Don't make the nav sticky — this design lets it scroll away to maximize content focus
Don't put a CTA button in the nav — this design uses links only at the top
Don't over-build the footer — this design keeps it minimal (1 cols, 0 links)
10
Agent guide & export
Paste-ready prompt + the real files behind this page
Build a UI in the hono.dev design system.
Canvas #ffffff · ink #1f2328 · accent #f6f6f7.
Type: -apple-system — respect the size/weight ladder in §3.
Radius, spacing, shadow: use only the extracted scales (no magic numbers).
Full spec follows — paste the DESIGN.md below into your agent.