Substack vs Square
58 token-level differences between these two design systems.
Background
#ffffff → #ffffff Text
#363737 → #000000 Brand
#ff6719 → #000000 Border
rgba(0, 0, 0, 0.10) → #d8d8d8 Display font
Cahuenga → Square Sans Display Body size
19px → 16px colors 51 changed
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bg-cream #fbf9f4 → #f1eee9 ~
text #363737 → #000000 ~
text-muted #878787 → #5a5a5a ~
brand #ff6719 → #000000 ~
brand-hover #e85412 → #1c1c1c ~
border rgba(0, 0, 0, 0.10) → #d8d8d8 ~
border-strong rgba(0, 0, 0, 0.20) → #a0a0a0 ~
border-soft rgba(0, 0, 0, 0.06) → #ebebeb ~
shadow-soft rgba(0, 0, 0, 0.06) → rgba(0, 0, 0, 0.08) +
bg-dark #000000 +
bg-cool #f7f7f7 +
surface-soft #f7f7f7 +
surface-strong #ebebeb +
surface-dark-elevated #1c1c1c +
surface-cream #f1eee9 +
text-body #1c1c1c +
text-subtle #8a8a8a +
text-on-dark #ffffff +
text-on-dark-soft #a0a0a0 +
accent #006aff +
accent-hover #0050c8 +
accent-soft #e6efff +
on-accent #ffffff +
link #006aff +
link-hover #0050c8 +
border-on-dark rgba(255,255,255,0.16) +
semantic-success #1f8b4c +
semantic-warning #cc7700 +
semantic-danger #cf202f +
semantic-info #006aff +
focus-ring rgba(0,106,255,0.45) +
shadow-ambient rgba(0, 0, 0, 0.04) +
shadow-hard rgba(0, 0, 0, 0.16) −
bg-elev #fafaf7 −
bg-soft #f6f6f3 −
surface-warm #fafaf7 −
text-strong #1a1a1a −
text-soft #666c70 −
text-faint #a8a8a8 −
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-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":"Square Sans Display","size":80} ~
h1 {"family":"Cahuenga","size":40} → {"family":"Square Sans Display","size":40} ~
h2 {"family":"Cahuenga","size":32} → {"family":"Square Sans Display","size":32} ~
body {"family":"Spectral","size":19} → {"family":"Square Sans Text","size":16} ~
label {"family":"Monaco","size":13} → {"family":"Square Sans Mono","size":11} radius 1 changed
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button 6px → 8px spacing 1 changed
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xl 48px → 64px