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Neutral Modern design system.

Neutral Modern design system — A clean, product-oriented default. Use when the brief doesn't call for a specific mood — good for B2B tools, dashboards, and utility pages.

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See it in context

The same design tokens applied across artifact kinds — a website, an app, a slide, a poster. Original mocks re-skinned with this system, not screenshots.

Website
Slides
App
Poster

Design tokens

56 tokens conforming to the Open Design token contract — the same structured palette, type, spacing, and motion values your agent reads to theme any artifact.

Surface

  • --bg #fafafa
  • --surface #ffffff
  • --surface-warm var(--surface)

Text

  • --fg #111111
  • --fg-2 var(--fg)
  • --muted #6b6b6b
  • --meta var(--muted)

Border

  • --border #e5e5e5
  • --border-soft var(--border)

Accent

  • --accent #2f6feb
  • --accent-on #ffffff
  • --accent-hover color-mix(in oklab, var(--accent), black 8%)
  • --accent-active color-mix(in oklab, var(--accent), black 14%)

Semantic

  • --success #17a34a
  • --warn #eab308
  • --danger #dc2626

Typography

  • --font-display "Inter", -apple-system, system-ui, sans-serif
  • --font-body "Inter", -apple-system, system-ui, sans-serif
  • --font-mono ui-monospace, "JetBrains Mono", monospace

Type scale

  • --text-xs 12px
  • --text-sm 14px
  • --text-base 16px
  • --text-lg 20px
  • --text-xl 24px
  • --text-2xl 32px
  • --text-3xl 48px
  • --text-4xl 64px
  • --leading-body 1.5
  • --leading-tight 1.2
  • --tracking-display -0.01em

Spacing

  • --space-1 4px
  • --space-2 8px
  • --space-3 12px
  • --space-4 16px
  • --space-5 20px
  • --space-6 24px
  • --space-8 32px
  • --space-12 48px
  • --section-y-desktop 80px
  • --section-y-tablet 48px
  • --section-y-phone 32px

Radius

  • --radius-sm 8px
  • --radius-md 12px
  • --radius-lg 16px
  • --radius-pill 9999px

Elevation

  • --elev-flat none
  • --elev-ring 0 0 0 1px var(--border)
  • --elev-raised 0 2px 8px color-mix(in oklab, var(--fg), transparent 92%)

Focus

  • --focus-ring 0 0 0 3px color-mix(in oklab, var(--accent), transparent 70%)

Motion

  • --motion-fast 150ms
  • --motion-base 200ms
  • --ease-standard cubic-bezier(0.2, 0, 0, 1)

Layout

  • --container-max 1200px
  • --container-gutter-desktop 24px
  • --container-gutter-tablet 16px
  • --container-gutter-phone 12px

Neutral Modern

Category: Starter A clean, product-oriented default. Use when the brief doesn’t call for a specific mood — good for B2B tools, dashboards, and utility pages.

Visual Theme & Atmosphere

Calm, functional, quietly confident. No ornament. Content-first, chrome-second.

Color Palette & Roles

  • Background: #FAFAFA
  • Foreground: #111111
  • Accent: #2F6FEB (cobalt) — primary CTAs, links, one hero element per screen
  • Muted: #6B6B6B — secondary text, captions
  • Border: #E5E5E5
  • Surface: #FFFFFF — cards, modals
  • Success: #17A34A, Warn: #EAB308, Danger: #DC2626 Never pure black; never pure white for backgrounds.

Typography Rules

  • Display / headings: 'Inter', -apple-system, system-ui, sans-serif, weight 600
  • Body: 'Inter', -apple-system, system-ui, sans-serif, weight 400
  • Mono: ui-monospace, 'JetBrains Mono', monospace
  • Scale (px): 12 · 14 · 16 · 20 · 24 · 32 · 48 · 64
  • Line-height: 1.5 for body, 1.2 for headings
  • Letter-spacing: -0.01em on display sizes ≥32px

Component Stylings

  • Buttons: 8px radius, 10px padding-block, 16px padding-inline. Primary = cobalt fill, white label. Secondary = 1px border, transparent fill.
  • Cards: white, 1px border, 12px radius, 20px internal padding, no shadow by default.
  • Inputs: 1px border, 8px radius, 10px vertical padding, cobalt border on focus.
  • Links: cobalt, no underline, underline on hover.

Layout Principles

  • 12-column grid, 1200px max-width, 24px gutters.
  • Hero: 40–60vh. Content top-biased, never centered vertically.
  • Sections: 80px top+bottom spacing desktop, 48px tablet, 32px phone.
  • Use whitespace as the main separator. Dividers only between unrelated top-level sections.

Depth & Elevation

Two levels only:

  • Flat (0): default.
  • Raised (1): dropdowns, modals, floating buttons. 2px y-offset, 8px blur, foreground at 8% opacity. No neumorphism, no glassmorphism.

Do’s and Don’ts

  • ✅ Let whitespace do the work.
  • ✅ One accent element per screen.
  • ✅ Sentence-case headings by default; title case only for brand names.
  • ❌ No gradients (except the accent → accent-at-80% on a hero, sparingly).
  • ❌ No drop shadows on inputs.
  • ❌ No more than three type sizes on one screen.

Responsive Behavior

  • Desktop ≥ 1024px: 12-col grid.
  • Tablet 640–1023px: 8-col grid, 16px gutters.
  • Phone < 640px: 4-col grid, 12px gutters; hero drops to 40vh.

Agent Prompt Guide

  • When in doubt, subtract. Fewer boxes, less chrome, more space.
  • Use the accent color sparingly — at most one hero accent and one CTA accent per screen.
  • Do not invent hex values outside this palette. If the request needs one, surface a warning comment in the artifact and use the closest existing token.
Mode
design-system
Scenario
design
Surface
web
Manifest id
design-system-default

Tags

  • design-system
  • first-party
  • design
  • starter