Music — Design Score: 87/100 (grade A)

music.youtube.com · 87/100 · grade A · top 10% of 313 measured design systems · measured live — not guessed

Strong typography & color contrast (A-grade), but sparse responsive design and minimal motion choreography leave mobile experience and visual flow unpolished.

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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/music.youtube.com.

The four measured dimensions

Typography & Hierarchy: 100/100
Color & Contrast: 90/100
Spacing & Layout: 76/100
Motion & Polish: 73/100

What we measured

Typography & Hierarchy — type ladder rhythm: 1.71× · 1.17× (34.7/35)
Typography & Hierarchy — weight contrast: [400, 500, 700] (spread 300) (20.0/20)
Typography & Hierarchy — body line-height: 1.71 (15.0/15)
Typography & Hierarchy — heading line-height: 1.25 (10.0/10)
Typography & Hierarchy — size discipline: 3 (20.0/20)
Color & Contrast — body text contrast (WCAG): 20.62:1 (30.0/30)
Color & Contrast — primary button contrast: 5.84:1 (10.0/10)
Color & Contrast — accent discipline: 2 (20.0/20)
Color & Contrast — surface coverage: 92% dominant (20.0/20)
Color & Contrast — scheme consistency: dark (10.0/20)
Spacing & Layout — spacing grid: 8px grid · 81% confidence (28.4/35)
Spacing & Layout — grid adherence: 3/4 on 8px (18.8/25)
Spacing & Layout — breathing room: 0.08 density · airy (25.0/25)
Spacing & Layout — structure & responsive: 1 breakpoints (4.0/15)
Motion & Polish — motion tokens: 280ms dominant (25.0/25)

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

Add mobile & tablet breakpoints
Implement load choreography (stagger reveals)
Snap spacing violations to 8px grid

The comprehensive report — every fix with why + the exact how-to — is part of Mozaika Pro.

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An automated measurement of Music's publicly-visible design (color, type, spacing, motion) — not affiliated with music.youtube.com. Removal requests: hello@mozaika.design.