Duolingo vs Substack
62 token-level differences between these two design systems.
Background
#ffffff → #ffffff Text
#4b4b4b → #363737 Brand
#58cc02 → #ff6719 Border
#e5e5e5 → rgba(0, 0, 0, 0.10) Display font
din-round → Cahuenga Body size
16px → 19px colors 50 changed
~
bg-soft #f7f7f7 → #f6f6f3 ~
text #4b4b4b → #363737 ~
text-strong #3c3c3c → #1a1a1a ~
text-muted #777777 → #878787 ~
text-soft #afafaf → #666c70 ~
text-faint #d4d4d4 → #a8a8a8 ~
text-link #1cb0f6 → #363737 ~
brand #58cc02 → #ff6719 ~
brand-hover #61e002 → #e85412 ~
brand-deep #3a8c00 → #cc4a0e ~
brand-tint #d7ffb8 → rgba(255, 103, 25, 0.10) ~
border #e5e5e5 → rgba(0, 0, 0, 0.10) ~
border-strong #d4d4d4 → rgba(0, 0, 0, 0.20) ~
border-soft #f0f0f0 → rgba(0, 0, 0, 0.06) ~
success #58cc02 → #0d8050 ~
warning #ff9600 → #d97706 ~
danger #ff4b4b → #dc2626 ~
info #1cb0f6 → #2563eb +
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) −
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 typography 5 changed
~
display {"family":"din-round","size":88} → {"family":"Cahuenga","size":56} ~
h1 {"family":"din-round","size":40} → {"family":"Cahuenga","size":40} ~
h2 {"family":"din-round","size":32} → {"family":"Cahuenga","size":32} ~
body {"family":"Lexend Deca","size":16} → {"family":"Spectral","size":19} ~
label {"family":"SFMono-Regular","size":14} → {"family":"Monaco","size":13} radius 2 changed
~
button 12px → 6px ~
card 24px → 12px spacing 5 changed
~
xs 0px → 4px ~
sm 4px → 8px ~
md 12px → 16px ~
lg 24px → 32px ~
xl 40px → 48px