Stackblitz — Design Score: 73/100 (grade B)
Strong motion & spacing systems undermined by catastrophic body-text contrast (1.27:1 vs 4.5:1 needed)—dark theme blocks low-vision users from reading.
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The four measured dimensions
- Typography & Hierarchy: 78/100
- Color & Contrast: 60/100
- Spacing & Layout: 75/100
- Motion & Polish: 83/100
What we measured
- Typography & Hierarchy — type ladder rhythm: 1.31× · 1.80× · 2.50× · 1.07× (23.3/35)
- Typography & Hierarchy — weight contrast: [400, 500, 600, 700, 800] (spread 400) (20.0/20)
- Typography & Hierarchy — body line-height: 2.00 (4.3/15)
- Typography & Hierarchy — heading line-height: 1.00 (10.0/10)
- Typography & Hierarchy — size discipline: 5 (20.0/20)
- Color & Contrast — body text contrast (WCAG): 1.27:1 (0.0/30)
- Color & Contrast — primary button contrast: 4.40:1 (9.6/10)
- Color & Contrast — accent discipline: 2 (20.0/20)
- Color & Contrast — surface coverage: 93% dominant (20.0/20)
- Color & Contrast — scheme consistency: dark (10.0/20)
- Spacing & Layout — spacing grid: 4px grid · 77% confidence (26.9/35)
- Spacing & Layout — grid adherence: 10/12 on 4px (20.8/25)
- Spacing & Layout — structure & responsive: 2 breakpoints (15.0/15)
- Motion & Polish — motion tokens: 100ms dominant (20.6/25)
- Motion & Polish — choreography: 5 reveal candidates (20.0/20)
Every line above is read from the live DOM — the exact contrast ratio, the detected spacing grid, the forced hover states — not an AI's guess from a screenshot.
Top fixes
- Fix body text contrast from 1.27:1 to ≥4.5:1 (WCAG AA)
- Reduce body line-height from 2.00 to 1.45–1.65
- Expand interactive hover/focus feedback beyond primary CTA
The comprehensive report — every fix with why + the exact how-to — is part of Mozaika Pro.
An automated measurement of Stackblitz's publicly-visible design (color, type, spacing, motion) — not affiliated with stackblitz.com. Removal requests: hello@mozaika.design.