Casper vs Substack
51 token-level differences between these two design systems.
Background
#ffffff → #ffffff Text
#1e306e → #363737 Brand
#1e306e → #ff6719 Border
#dde0e9 → rgba(0, 0, 0, 0.10) Display font
New Kansas → Cahuenga Body size
16px → 19px colors 41 changed
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bg-soft #f6f7fa → #f6f6f3 ~
brand #1e306e → #ff6719 ~
brand-deep #012169 → #cc4a0e ~
brand-hover #011a54 → #e85412 ~
text #1e306e → #363737 ~
text-strong #012169 → #1a1a1a ~
text-muted #5a6488 → #878787 ~
text-faint #8b93ac → #a8a8a8 ~
border #dde0e9 → rgba(0, 0, 0, 0.10) ~
border-strong #1e306e → rgba(0, 0, 0, 0.20) ~
border-soft #edeef3 → rgba(0, 0, 0, 0.06) ~
success #1f7a4d → #0d8050 ~
warning #9a6212 → #d97706 ~
danger #b3261e → #dc2626 ~
info #1e306e → #2563eb +
bg-elev #fafaf7 +
bg-cream #fbf9f4 +
surface-warm #fafaf7 +
text-soft #666c70 +
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) −
bg-subtle #edeef3 −
surface-tint #f6f7fa −
surface-inverse #1e306e −
on-surface-inverse #ffffff −
accent-tint #e8eaf0 −
accent-tint-strong #dde0e9 −
text-on-brand #ffffff −
link #1e306e −
link-hover #012169 −
focus-ring #012169 −
success-bg #e8f3ed −
warning-bg #f7efe1 −
danger-bg #f8e8e6 −
info-bg #edeef3 typography 5 changed
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display {"family":"New Kansas","size":80} → {"family":"Cahuenga","size":56} ~
h1 {"family":"New Kansas","size":40} → {"family":"Cahuenga","size":40} ~
h2 {"family":"New Kansas","size":32} → {"family":"Cahuenga","size":32} ~
body {"family":"Calibre","size":16} → {"family":"Spectral","size":19} ~
label {"family":"SFMono-Regular","size":13} → {"family":"Monaco","size":13} radius 1 changed
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button 8px → 6px spacing 4 changed
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xs 0px → 4px ~
sm 4px → 8px ~
md 12px → 16px ~
xl 64px → 48px