Bolt vs Substack
64 token-level differences between these two design systems.
Background
#1e1e21 → #ffffff Text
#ffffff → #363737 Brand
#1488fc → #ff6719 Border
rgba(255, 255, 255, 0.10) → rgba(0, 0, 0, 0.10) Display font
Inter Display → Cahuenga Body size
16px → 19px colors 54 changed
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bg #1e1e21 → #ffffff ~
surface #26262a → #ffffff ~
text #ffffff → #363737 ~
text-muted #a3a3a8 → #878787 ~
text-faint #8a8a8f → #a8a8a8 ~
brand #1488fc → #ff6719 ~
brand-deep #0f6fd6 → #cc4a0e ~
on-brand #f3f0f5 → #ffffff ~
border rgba(255, 255, 255, 0.10) → rgba(0, 0, 0, 0.10) ~
border-strong rgba(255, 255, 255, 0.16) → rgba(0, 0, 0, 0.20) +
bg-elev #fafaf7 +
bg-cream #fbf9f4 +
bg-soft #f6f6f3 +
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-soft rgba(0, 0, 0, 0.06) +
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-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 #161618 −
surface-soft #2a2a2e −
surface-strong #2e2e33 −
text-display #fffeff −
text-medium #b2b2b8 −
text-disabled #5c5c61 −
brand-bright #2ba6ff −
brand-wash rgba(20, 136, 252, 0.12) −
on-brand-bright #ffffff −
utility-dark #101010 −
utility-dark-text rgba(255, 255, 255, 0.75) −
link #2ba6ff −
link-hover #5cbbff −
selected-bg #26262a −
border-subtle rgba(255, 255, 255, 0.06) −
border-focus #1488fc −
success-bg rgba(34, 134, 58, 0.18) −
success-text #3fce6a −
warning-bg rgba(166, 120, 20, 0.18) −
warning-text #e2b13c −
danger-bg rgba(196, 52, 60, 0.18) −
danger-text #ff6b73 −
info-bg rgba(20, 136, 252, 0.14) −
info-text #5cbbff typography 5 changed
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display {"family":"Inter Display","size":80} → {"family":"Cahuenga","size":56} ~
h1 {"family":"Inter Display","size":48} → {"family":"Cahuenga","size":40} ~
h2 {"family":"Inter Display","size":32} → {"family":"Cahuenga","size":32} ~
body {"family":"Inter","size":16} → {"family":"Spectral","size":19} ~
label {"family":"SFMono-Regular","size":13} → {"family":"Monaco","size":13} radius 1 changed
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card 16px → 12px spacing 4 changed
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xs 0px → 4px ~
sm 4px → 8px ~
md 12px → 16px ~
xl 64px → 48px