Substack vs YouTube
67 token-level differences between these two design systems.
Background
#ffffff → #0f0f0f Text
#363737 → #ffffff Brand
#ff6719 → #ff0000 Border
rgba(0, 0, 0, 0.10) → #3f3f3f Display font
Cahuenga → YouTube Sans Body size
19px → 14px colors 61 changed
~
bg #ffffff → #0f0f0f ~
surface #ffffff → #272727 ~
text #363737 → #ffffff ~
text-strong #1a1a1a → #ffffff ~
text-soft #666c70 → #717171 ~
text-muted #878787 → #aaaaaa ~
brand #ff6719 → #ff0000 ~
brand-hover #e85412 → #cc0000 ~
brand-deep #cc4a0e → #990000 ~
border rgba(0, 0, 0, 0.10) → #3f3f3f ~
border-strong rgba(0, 0, 0, 0.20) → #5e5e5e ~
border-soft rgba(0, 0, 0, 0.06) → #272727 ~
success #0d8050 → #0db750 ~
warning #d97706 → #f1c21b ~
danger #dc2626 → #cc0000 ~
info #2563eb → #3ea6ff +
bg-deep #000000 +
bg-light #ffffff +
surface-strong #3f3f3f +
surface-soft #1f1f1f +
surface-card transparent +
surface-overlay rgba(0,0,0,0.85) +
surface-light #f9f9f9 +
text-body #ffffff +
text-inverse #0f0f0f +
text-disabled #717171 +
text-light #0f0f0f +
text-light-muted #606060 +
brand-active #aa0000 +
brand-shorts #ff0033 +
accent-link #3ea6ff +
accent-link-light #065fd4 +
accent-premium #f1c21b +
accent-music #ff0033 +
accent-tv #ff0000 +
accent-kids #ff0000 +
border-light #e5e5e5 +
shadow-card rgba(0,0,0,0.4) +
shadow-modal rgba(0,0,0,0.5) 0 8px 24px +
scrim-thumb linear-gradient(0deg, rgba(0,0,0,0.7) 0%, transparent 60%) +
progress-watched #ff0000 +
progress-rail rgba(255,255,255,0.2) +
progress-buffer rgba(255,255,255,0.4) +
recording-dot #ff0000 +
live-badge-bg #ff0000 +
duration-badge-bg rgba(0,0,0,0.6) +
shorts-tab #ff0033 +
community-tab #3ea6ff −
bg-elev #fafaf7 −
bg-cream #fbf9f4 −
bg-soft #f6f6f3 −
surface-warm #fafaf7 −
text-faint #a8a8a8 −
text-link #363737 −
brand-tint rgba(255, 103, 25, 0.10) −
brand-tint-strong rgba(255, 103, 25, 0.18) −
border-warm rgba(0, 0, 0, 0.08) −
selection-bg rgba(255, 103, 25, 0.20) −
shadow-soft rgba(0, 0, 0, 0.06) −
shadow-medium rgba(0, 0, 0, 0.10) −
reading-rule rgba(0, 0, 0, 0.08) typography 5 changed
~
display {"family":"Cahuenga","size":56} → {"family":"YouTube Sans","size":72} ~
h1 {"family":"Cahuenga","size":40} → {"family":"YouTube Sans","size":40} ~
h2 {"family":"Cahuenga","size":32} → {"family":"YouTube Sans","size":32} ~
body {"family":"Spectral","size":19} → {"family":"YouTube Sans","size":14} ~
label {"family":"Monaco","size":13} → {"family":"Roboto Mono","size":11} radius 1 changed
~
button 6px → 8px spacing identical
No differences.