Polar vs Substack
53 token-level differences between these two design systems.
Background
#171719 → #ffffff Text
#d7d8da → #363737 Brand
#5b3eea → #ff6719 Border
#1d1e20 → rgba(0, 0, 0, 0.10) Display font
InterDisplay → Cahuenga Body size
16px → 19px colors 46 changed
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bg #171719 → #ffffff ~
surface #101011 → #ffffff ~
text #d7d8da → #363737 ~
text-strong #ffffff → #1a1a1a ~
text-soft #71727a → #666c70 ~
text-muted #828387 → #878787 ~
text-faint #4a4b50 → #a8a8a8 ~
brand #5b3eea → #ff6719 ~
brand-hover #6e54f0 → #e85412 ~
brand-deep #3a268f → #cc4a0e ~
border #1d1e20 → rgba(0, 0, 0, 0.10) ~
border-soft #171719 → rgba(0, 0, 0, 0.06) ~
border-strong #2a2c30 → rgba(0, 0, 0, 0.20) ~
selection-bg #5b3eea → rgba(255, 103, 25, 0.20) ~
success #3ddc97 → #0d8050 ~
warning #e8b94f → #d97706 ~
danger #ee5a5a → #dc2626 ~
info #5ec4ee → #2563eb +
bg-elev #fafaf7 +
bg-cream #fbf9f4 +
bg-soft #f6f6f3 +
surface-warm #fafaf7 +
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) +
shadow-soft rgba(0, 0, 0, 0.06) +
shadow-medium rgba(0, 0, 0, 0.10) +
reading-rule rgba(0, 0, 0, 0.08) −
bg-deep #0a0a0a −
surface-alt #090909 −
surface-raised #1d1d20 −
surface-overlay #202024 −
text-on-brand #ffffff −
brand-active #4a30c8 −
brand-soft #1a1432 −
accent-stroke #ffffff −
accent-dim #282828 −
accent-serif #d7d8da −
link #9c87f5 −
link-hover #ffffff −
focus-ring #5b3eea −
selection-text #ffffff −
shadow #00000080 −
card #171719 −
popover #101011 typography 5 changed
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display {"family":"InterDisplay","size":128} → {"family":"Cahuenga","size":56} ~
h1 {"family":"InterDisplay","size":60} → {"family":"Cahuenga","size":40} ~
h2 {"family":"InterDisplay","size":48} → {"family":"Cahuenga","size":32} ~
body {"family":"Inter","size":16} → {"family":"Spectral","size":19} ~
label {"family":"GeistMono","size":11} → {"family":"Monaco","size":13} radius 1 changed
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card 24px → 12px spacing 1 changed
~
xl 64px → 48px