Substack vs Duolingo
62 token-level differences between these two design systems.
Background
#ffffff → #ffffff Text
#363737 → #4b4b4b Brand
#ff6719 → #58cc02 Border
rgba(0, 0, 0, 0.10) → #e5e5e5 Display font
Cahuenga → din-round Body size
19px → 16px colors 50 changed
~
bg-soft #f6f6f3 → #f7f7f7 ~
text #363737 → #4b4b4b ~
text-strong #1a1a1a → #3c3c3c ~
text-soft #666c70 → #afafaf ~
text-faint #a8a8a8 → #d4d4d4 ~
text-muted #878787 → #777777 ~
text-link #363737 → #1cb0f6 ~
brand #ff6719 → #58cc02 ~
brand-hover #e85412 → #61e002 ~
brand-deep #cc4a0e → #3a8c00 ~
brand-tint rgba(255, 103, 25, 0.10) → #d7ffb8 ~
border rgba(0, 0, 0, 0.10) → #e5e5e5 ~
border-strong rgba(0, 0, 0, 0.20) → #d4d4d4 ~
border-soft rgba(0, 0, 0, 0.06) → #f0f0f0 ~
success #0d8050 → #58cc02 ~
warning #d97706 → #ff9600 ~
danger #dc2626 → #ff4b4b ~
info #2563eb → #1cb0f6 +
bg-warm #fff4dd +
surface-soft #fafafa +
surface-tinted #f0fff0 +
text-on-brand #ffffff +
brand-pressed #46a302 +
streak-orange #ff9600 +
streak-orange-deep #cc7700 +
heart-red #ff4b4b +
heart-red-deep #e02e2e +
xp-gold #ffc800 +
xp-gold-deep #cc9f00 +
super-purple #ce82ff +
super-purple-deep #a560d4 +
macaw-blue #1cb0f6 +
macaw-blue-deep #0a8acf +
border-brand #58cc02 +
shadow-button #46a302 +
shadow-card rgba(0, 0, 0, 0.08) +
shadow-modal rgba(0, 0, 0, 0.16) +
success-bg #d7ffb8 +
warning-bg #fff4dd +
danger-bg #ffe5e5 +
info-bg #ddf4ff −
bg-elev #fafaf7 −
bg-cream #fbf9f4 −
surface-warm #fafaf7 −
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
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display {"family":"Cahuenga","size":56} → {"family":"din-round","size":88} ~
h1 {"family":"Cahuenga","size":40} → {"family":"din-round","size":40} ~
h2 {"family":"Cahuenga","size":32} → {"family":"din-round","size":32} ~
body {"family":"Spectral","size":19} → {"family":"Lexend Deca","size":16} ~
label {"family":"Monaco","size":13} → {"family":"SFMono-Regular","size":14} radius 2 changed
~
button 6px → 12px ~
card 12px → 24px spacing 5 changed
~
xs 4px → 0px ~
sm 8px → 4px ~
md 16px → 12px ~
lg 32px → 24px ~
xl 48px → 40px