Substack vs Hume AI
65 token-level differences between these two design systems.
Background
#ffffff → #fff9f3 Text
#363737 → #222222 Brand
#ff6719 → #222222 Border
rgba(0, 0, 0, 0.10) → #e7dccd Display font
Cahuenga → Fellix Body size
19px → 16px colors 54 changed
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bg #ffffff → #fff9f3 ~
bg-soft #f6f6f3 → #fdf4ec ~
surface #ffffff → #f7ede1 ~
text #363737 → #222222 ~
text-strong #1a1a1a → #000000 ~
text-soft #666c70 → #7a7269 ~
text-faint #a8a8a8 → #a89e92 ~
text-muted #878787 → #5c554e ~
brand #ff6719 → #222222 ~
brand-hover #e85412 → #000000 ~
on-brand #ffffff → #fff9f3 ~
border rgba(0, 0, 0, 0.10) → #e7dccd ~
border-strong rgba(0, 0, 0, 0.20) → #d9cdbb ~
border-soft rgba(0, 0, 0, 0.06) → #f0e6d9 +
surface-strong #efe2d2 +
surface-hover #f4e8da +
text-medium #3a3633 +
on-cta #fff9f3 +
brand-soft #3a3633 +
accent #e8d5c4 +
accent-deep #d9bfa6 +
accent-faint #f3e7da +
link #222222 +
link-hover #000000 +
selected-bg #f3e7da +
disabled-bg #f4e8da +
disabled-text #a89e92 +
border-focus #222222 +
success-bg #e3efe0 +
success-text #3f6b3a +
warning-bg #fbeecf +
warning-text #8a6420 +
danger-bg #f7e0db +
danger-text #a4362a +
info-bg #e8e6e3 +
info-text #3a3633 +
shadow-rgb 34, 28, 22 +
shadow-warm 160, 120, 80 −
bg-elev #fafaf7 −
bg-cream #fbf9f4 −
surface-warm #fafaf7 −
text-link #363737 −
brand-deep #cc4a0e −
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) −
success #0d8050 −
warning #d97706 −
danger #dc2626 −
info #2563eb −
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
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display {"family":"Cahuenga","size":56} → {"family":"Fellix","size":80} ~
h1 {"family":"Cahuenga","size":40} → {"family":"Fellix","size":48} ~
h2 {"family":"Cahuenga","size":32} → {"family":"Fellix","size":36} ~
body {"family":"Spectral","size":19} → {"family":"Fellix","size":16} ~
label {"family":"Monaco","size":13} → {"family":"SFMono-Regular","size":13} radius 2 changed
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button 6px → 10px ~
card 12px → 18px spacing 4 changed
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xs 4px → 0px ~
sm 8px → 4px ~
md 16px → 12px ~
xl 48px → 64px