Sleek design system.
Sleek design system — Modern minimalist aesthetic with clean lines, intentional color palette, subtle interactions, and consistent spacing.
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.
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OpenDesignDESIGN.md
Design tokens
56 tokens conforming to the OpenDesign token contract — the same structured palette, type, spacing, and motion values your agent reads to theme any artifact.
Surface
-
--bg#090b12 -
--surface#121722 -
--surface-warm#1b2233
Text
-
--fg#f8fafc -
--fg-2#cbd5e1 -
--muted#94a3b8 -
--meta#60a5fa
Border
-
--border#2a3447 -
--border-soft#1d2636
Accent
-
--accent#60a5fa -
--accent-on#06101d -
--accent-hovercolor-mix(in oklab, var(--accent), black 8%) -
--accent-activecolor-mix(in oklab, var(--accent), black 14%)
Semantic
-
--success#22c55e -
--warn#fbbf24 -
--danger#fb7185
Typography
-
--font-displayInter, system-ui, sans-serif -
--font-bodyInter, system-ui, sans-serif -
--font-mono"SF Mono", ui-monospace, Menlo, monospace
Type scale
-
--text-xs12px -
--text-sm14px -
--text-base16px -
--text-lg18px -
--text-xl24px -
--text-2xl36px -
--text-3xl54px -
--text-4xl76px -
--leading-body1.52 -
--leading-tight1.06 -
--tracking-display-0.025em
Spacing
-
--space-14px -
--space-28px -
--space-312px -
--space-416px -
--space-520px -
--space-624px -
--space-832px -
--space-1248px -
--section-y-desktop96px -
--section-y-tablet68px -
--section-y-phone48px
Radius
-
--radius-sm10px -
--radius-md16px -
--radius-lg24px -
--radius-pill9999px
Elevation
-
--elev-flatnone -
--elev-ring0 0 0 1px var(--border) -
--elev-raised0 24px 72px rgba(0, 0, 0, 0.42)
Focus
-
--focus-ring0 0 0 4px rgba(96, 165, 250, 0.28)
Motion
-
--motion-fast150ms -
--motion-base240ms -
--ease-standardcubic-bezier(0.2, 0, 0, 1)
Layout
-
--container-max1180px -
--container-gutter-desktop36px -
--container-gutter-tablet24px -
--container-gutter-phone16px
Design System Inspired by Sleek
Category: Modern & Minimal Modern minimalist aesthetic with clean lines, intentional color palette, subtle interactions, and consistent spacing.
1. Visual Theme & Atmosphere
Modern minimalist aesthetic with clean lines, intentional color palette, subtle interactions, and consistent spacing.
- Visual style: modern, minimal, clean
- Color stance: primary, neutral, success, warning, danger
- Design intent: Keep outputs recognizable to this style family while preserving usability and readability.
2. Color
- Primary:
#3B82F6— Token from style foundations. - Secondary:
#8B5CF6— Token from style foundations. - Success:
#16A34A— Token from style foundations. - Warning:
#D97706— Token from style foundations. - Danger:
#DC2626— Token from style foundations. - Surface:
#FFFFFF— Token from style foundations. - Text:
#111827— Token from style foundations. - Neutral:
#FFFFFF— Derived from the surface token for official format compatibility.
- Favor Primary (#3B82F6) for CTA emphasis.
- Use Surface (#FFFFFF) for large backgrounds and cards.
- Keep body copy on Text (#111827) for legibility.
3. Typography
- Scale: desktop-first expressive scale
- Families: primary=Inter, display=Inter, mono=JetBrains Mono
- Weights: 100, 200, 300, 400, 500, 600, 700, 800, 900
- Headings should carry the style personality; body text should optimize scanability and contrast.
4. Spacing & Grid
- Spacing scale: 8pt baseline grid
- Keep vertical rhythm consistent across sections and components.
- Align columns and modules to a predictable grid; avoid ad-hoc offsets.
5. Layout & Composition
- Prefer clear content blocks with consistent internal padding.
- Keep hierarchy obvious: headline → support text → primary action.
- Use whitespace to separate concerns before adding borders or shadows.
6. Components
- Buttons: primary action uses
#3B82F6; secondary actions stay neutral. - Inputs: strong focus-visible states, clear labels, and predictable error messaging.
- Cards/sections: use consistent radii, spacing, and elevation strategy across the page.
7. Motion & Interaction
- Use subtle transitions that emphasize Primary (#3B82F6) as the interaction signal.
- Default to short, purposeful transitions (150–250ms) with stable easing.
- Ensure hover, focus-visible, active, disabled, and loading states are explicit.
8. Voice & Brand
- Tone should reflect the visual style: concise, confident, and product-specific.
- Keep microcopy action-oriented and avoid generic filler language.
- Preserve the style identity in headlines while keeping UI labels literal and clear.
9. Anti-patterns
- Do not introduce off-palette colors when an existing token can solve the problem.
- Do not flatten hierarchy by using the same type size/weight for all text.
- Do not add decorative effects that reduce readability or accessibility.
- Do not mix unrelated visual metaphors in the same interface.
Tags
design-systemfirst-partydesignmodern-minimal