Hume AI vs Substack
65 token-level differences between these two design systems.
Background
#fff9f3 → #ffffff Text
#222222 → #363737 Brand
#222222 → #ff6719 Border
#e7dccd → rgba(0, 0, 0, 0.10) Display font
Fellix → Cahuenga Body size
16px → 19px colors 54 changed
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bg #fff9f3 → #ffffff ~
bg-soft #fdf4ec → #f6f6f3 ~
surface #f7ede1 → #ffffff ~
text #222222 → #363737 ~
text-strong #000000 → #1a1a1a ~
text-muted #5c554e → #878787 ~
text-soft #7a7269 → #666c70 ~
text-faint #a89e92 → #a8a8a8 ~
on-brand #fff9f3 → #ffffff ~
brand #222222 → #ff6719 ~
brand-hover #000000 → #e85412 ~
border #e7dccd → rgba(0, 0, 0, 0.10) ~
border-strong #d9cdbb → rgba(0, 0, 0, 0.20) ~
border-soft #f0e6d9 → rgba(0, 0, 0, 0.06) +
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) −
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 typography 5 changed
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display {"family":"Fellix","size":80} → {"family":"Cahuenga","size":56} ~
h1 {"family":"Fellix","size":48} → {"family":"Cahuenga","size":40} ~
h2 {"family":"Fellix","size":36} → {"family":"Cahuenga","size":32} ~
body {"family":"Fellix","size":16} → {"family":"Spectral","size":19} ~
label {"family":"SFMono-Regular","size":13} → {"family":"Monaco","size":13} radius 2 changed
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button 10px → 6px ~
card 18px → 12px spacing 4 changed
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xs 0px → 4px ~
sm 4px → 8px ~
md 12px → 16px ~
xl 64px → 48px