Substack vs Windsurf
49 token-level differences between these two design systems.
Background
#ffffff → #f6eede Text
#363737 → #0b100f Brand
#ff6719 → #34e8bb Border
rgba(0, 0, 0, 0.10) → #c0c1c6 Display font
Cahuenga → tomatoGrotesk Body size
19px → 16px colors 39 changed
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bg #ffffff → #f6eede ~
bg-soft #f6f6f3 → #fbf7ee ~
text #363737 → #0b100f ~
text-faint #a8a8a8 → #8a8f8b ~
text-muted #878787 → #5a615d ~
brand #ff6719 → #34e8bb ~
brand-deep #cc4a0e → #0fbf97 ~
on-brand #ffffff → #003326 ~
border rgba(0, 0, 0, 0.10) → #c0c1c6 ~
border-soft rgba(0, 0, 0, 0.06) → #e3e0d6 ~
success #0d8050 → #0fbf97 ~
warning #d97706 → #c08a2e ~
danger #dc2626 → #d8413f ~
info #2563eb → #4380b4 +
surface-dark #0b100f +
surface-dark-soft #141a18 +
text-on-dark #ffffff +
text-body #3a423f +
text-on-dark-muted rgba(255, 255, 255, 0.7) +
link #0b100f +
link-hover #0fbf97 +
border-dark rgba(255, 255, 255, 0.12) +
ring rgba(67, 128, 180, 0.5) +
shadow-tint rgba(11, 16, 15, 0.10) −
bg-elev #fafaf7 −
bg-cream #fbf9f4 −
surface-warm #fafaf7 −
text-strong #1a1a1a −
text-soft #666c70 −
text-link #363737 −
brand-hover #e85412 −
brand-tint rgba(255, 103, 25, 0.10) −
brand-tint-strong rgba(255, 103, 25, 0.18) −
border-strong rgba(0, 0, 0, 0.20) −
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
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display {"family":"Cahuenga","size":56} → {"family":"tomatoGrotesk","size":72} ~
h1 {"family":"Cahuenga","size":40} → {"family":"tomatoGrotesk","size":48} ~
h2 {"family":"Cahuenga","size":32} → {"family":"tomatoGrotesk","size":40} ~
body {"family":"Spectral","size":19} → {"family":"Inter","size":16} ~
label {"family":"Monaco","size":13} → {"family":"SFMono-Regular","size":13} radius 1 changed
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button 6px → 8px spacing 4 changed
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xs 4px → 0px ~
sm 8px → 4px ~
md 16px → 12px ~
xl 48px → 64px