Substack vs Arc
68 token-level differences between these two design systems.
Background
#ffffff → #FFFCEC Text
#363737 → #000000 Brand
#ff6719 → #2404AA Border
rgba(0, 0, 0, 0.10) → rgba(0, 0, 0, 0.12) Display font
Cahuenga → Marlin Soft SQ Body size
19px → 16px colors 56 changed
~
bg #ffffff → #FFFCEC ~
surface #ffffff → #FFFFFF ~
text #363737 → #000000 ~
text-strong #1a1a1a → #000000 ~
text-soft #666c70 → rgba(0, 0, 0, 0.6) ~
text-faint #a8a8a8 → rgba(0, 0, 0, 0.45) ~
text-muted #878787 → rgba(0, 0, 0, 0.3) ~
brand #ff6719 → #2404AA ~
brand-deep #cc4a0e → #1A0388 ~
on-brand #ffffff → #FFFCEC ~
border rgba(0, 0, 0, 0.10) → rgba(0, 0, 0, 0.12) +
bg-secondary #FFF8DC +
surface-elev #FFFEF7 +
text-medium rgba(0, 0, 0, 0.8) +
brand-blue #3139FB +
brand-red #FB3A4D +
brand-coral-soft #FFE3E6 +
cta-bg #FFFFFF +
cta-text #2702C2 +
swatch-pale-green #D7F0D2 +
swatch-salmon #FFD9CF +
swatch-pale-yellow #FFF1A8 +
swatch-soft-blue #D1E2FF +
swatch-lavender #E6DCFF +
link #2404AA +
link-hover #3139FB +
selected-bg rgba(36, 4, 170, 0.08) +
disabled rgba(0, 0, 0, 0.3) +
border-subtle rgba(0, 0, 0, 0.06) +
border-brand rgba(36, 4, 170, 0.30) +
success-bg #D7F0D2 +
success-text #1F4D24 +
warning-bg #FFF1A8 +
warning-text #7A5A00 +
danger-bg #FFE3E6 +
danger-text #A8112A +
info-bg #D1E2FF +
info-text #1A2B6B −
bg-elev #fafaf7 −
bg-cream #fbf9f4 −
bg-soft #f6f6f3 −
surface-warm #fafaf7 −
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) typography 5 changed
~
display {"family":"Cahuenga","size":56} → {"family":"Marlin Soft SQ","size":64} ~
h1 {"family":"Cahuenga","size":40} → {"family":"Marlin Soft SQ","size":46} ~
h2 {"family":"Cahuenga","size":32} → {"family":"Marlin Soft SQ","size":36} ~
body {"family":"Spectral","size":19} → {"family":"Marlin","size":16} ~
label {"family":"Monaco","size":13} → {"family":"ABC Favorit Mono","size":11} radius 2 changed
~
button 6px → 10px ~
card 12px → 16px spacing 5 changed
~
xs 4px → 1px ~
sm 8px → 2px ~
md 16px → 6px ~
lg 32px → 12px ~
xl 48px → 20px