OpenAI vs Buttondown
51 token-level differences between these two design systems.
Background
#ffffff → #ffffff Text
#000000 → #000000 Brand
#000000 → #0069ff Border
rgba(0,0,0,0.1) → #e5e5e5 Display font
OpenAI Sans → Auto Pro Body size
16px → 16px colors 42 changed
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text-muted #5d5d5d → #525252 ~
text-faint #b4b4b4 → #a3a3a3 ~
brand #000000 → #0069ff ~
brand-hover #1a1a1a → #0052cc ~
brand-active #2c2c2c → #0043a8 ~
accent #10a37f → #fef08a ~
accent-soft #d6f3e8 → #fefce8 ~
link #000000 → #0069ff ~
border rgba(0,0,0,0.1) → #e5e5e5 ~
border-strong rgba(0,0,0,0.16) → #d4d4d4 ~
success #10a37f → #15803d ~
warning #d97706 → #b45309 ~
danger #cc2525 → #dc2626 ~
info #3a3a3a → #0069ff +
surface-2 #f4f4f5 +
surface-3 #e9e9eb +
text-soft #737373 +
brand-soft #e6f0ff +
highlight #fef08a +
success-bg #dcfce7 +
warning-bg #fef3c7 +
danger-bg #fee2e2 +
info-bg #e6f0ff −
bg-soft #f1f1f1 −
bg-section #f7f7f7 −
surface-card #ffffff −
surface-hover rgba(0,0,0,0.04) −
surface-press rgba(0,0,0,0.08) −
text-subtle #8e8e8e −
text-on-brand #ffffff −
text-on-dark #ededed −
brand-on-dark #ffffff −
accent-hover #0d8a6b −
link-hover #5d5d5d −
link-visited #000000 −
border-soft rgba(0,0,0,0.08) −
scrim rgba(0,0,0,0.5) −
shadow-card rgba(0,0,0,0.06) −
shadow-elev rgba(0,0,0,0.10) −
shadow-modal rgba(0,0,0,0.20) −
warning-soft #fdf3e7 −
danger-soft #fae5e5 typography 5 changed
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display {"family":"OpenAI Sans","size":48} → {"family":"Auto Pro","size":96} ~
h1 {"family":"OpenAI Sans","size":40} → {"family":"Auto Pro","size":44} ~
h2 {"family":"OpenAI Sans","size":32} → {"family":"Auto Pro","size":32} ~
body {"family":"OpenAI Sans","size":16} → {"family":"Auto Pro","size":16} ~
label {"family":"OpenAI Sans Mono","size":12} → {"family":"SFMono-Regular","size":13} radius identical
No differences.
spacing 4 changed
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xs 4px → 0px ~
sm 8px → 4px ~
md 16px → 12px ~
xl 48px → 64px