Substack vs Readwise
60 token-level differences between these two design systems.
Background
#ffffff → #fdf7ef Text
#363737 → #2c2418 Brand
#ff6719 → #ff7a45 Border
rgba(0, 0, 0, 0.10) → #e5d9c4 Display font
Cahuenga → Tiempos Headline Body size
19px → 17px colors 53 changed
~
bg #ffffff → #fdf7ef ~
surface #ffffff → #f5ecdf ~
surface-warm #fafaf7 → #f5ecdf ~
text #363737 → #2c2418 ~
text-strong #1a1a1a → #1a1308 ~
text-soft #666c70 → #9b8d75 ~
text-faint #a8a8a8 → #b6a888 ~
text-muted #878787 → #6b5e4a ~
brand #ff6719 → #ff7a45 ~
brand-hover #e85412 → #e8602a ~
brand-deep #cc4a0e → #a83a14 ~
border rgba(0, 0, 0, 0.10) → #e5d9c4 ~
border-strong rgba(0, 0, 0, 0.20) → #d4c4a8 ~
border-soft rgba(0, 0, 0, 0.06) → #f0e7d5 ~
success #0d8050 → #3d6b4a ~
warning #d97706 → #c97a1f ~
danger #dc2626 → #b94326 ~
info #2563eb → #4d6580 +
bg-alt #ffffff +
bg-deep #f9f0e0 +
surface-soft #fbf3e7 +
surface-deep #e8d9c2 +
surface-paper #ffffff +
text-on-brand #ffffff +
text-on-dark #fdf7ef +
brand-active #cc4a1a +
brand-soft #ffe4d4 +
brand-paler #fff0e6 +
accent #3d6b4a +
accent-soft #dfeae0 +
accent-deep #27432f +
highlight-bg #fff4d6 +
highlight-text #2c2418 +
underline #ff7a45 +
link #ff7a45 +
link-hover #cc4a1a +
link-visited #7d3c84 +
scrim rgba(44,36,24,0.45) +
shadow-warm rgba(60,40,15,0.05) +
shadow-card rgba(60,40,15,0.10) +
shadow-elev rgba(60,40,15,0.18) +
warning-soft #fdf0d8 −
bg-elev #fafaf7 −
bg-cream #fbf9f4 −
bg-soft #f6f6f3 −
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) −
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
~
display {"family":"Cahuenga","size":56} → {"family":"Tiempos Headline","size":68} ~
h1 {"family":"Cahuenga","size":40} → {"family":"Tiempos Headline","size":60} ~
h2 {"family":"Cahuenga","size":32} → {"family":"Tiempos Headline","size":40} ~
body {"family":"Spectral","size":19} → {"family":"Inter","size":17} ~
label {"family":"Monaco","size":13} → {"family":"JetBrains Mono","size":12} radius 2 changed
~
button 6px → 10px ~
card 12px → 16px spacing identical
No differences.