Youtube — Design Score: 60/100 (grade C)
Dark palette is clean & motion is polished, but body text is unreadable (black-on-black) and type sizes barely differentiate.
This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/score/youtube.com.
The four measured dimensions
- Typography & Hierarchy: 53/100
- Color & Contrast: 56/100
- Spacing & Layout: 72/100
- Motion & Polish: 65/100
What we measured
- Typography & Hierarchy — type ladder rhythm: 1.08× (26.9/35)
- Typography & Hierarchy — weight contrast: [400, 500] (spread 100) (11.4/20)
- Typography & Hierarchy — body line-height: 2.86 (0.0/15)
- Typography & Hierarchy — size discipline: 2 (10.0/20)
- Color & Contrast — body text contrast (WCAG): 1.00:1 (0.0/30)
- Color & Contrast — primary button contrast: 5.54:1 (10.0/10)
- Color & Contrast — accent discipline: 1 (20.0/20)
- Color & Contrast — surface coverage: 58% dominant (16.0/20)
- Color & Contrast — scheme consistency: dark (10.0/20)
- Spacing & Layout — spacing grid: 4px grid · 86% confidence (30.1/35)
- Spacing & Layout — grid adherence: 7/12 on 4px (14.6/25)
- Spacing & Layout — breathing room: 0.45 density · dense (12.2/25)
- Spacing & Layout — structure & responsive: 2 breakpoints (15.0/15)
- Motion & Polish — motion tokens: 200ms dominant (25.0/25)
- Motion & Polish — choreography: 0 reveal candidates (0.0/20)
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
- Restore body text readability—raise contrast from 1:1 to ≥4.5:1
- Expand type ladder—jump from 1.08× to 1.35–1.5× between sizes
- Increase body line-height from 2.86 to 1.5–1.75 (comfortable reading range)
The comprehensive report — every fix with why + the exact how-to — is part of Mozaika Pro.
An automated measurement of Youtube's publicly-visible design (color, type, spacing, motion) — not affiliated with youtube.com. Removal requests: hello@mozaika.design.