Claude.ai vs OpenAI
55 token-level differences between these two design systems.
Background
#f8f8f6 → #ffffff Text
#121212 → #000000 Brand
#cd6f47 → #000000 Border
rgba(18,18,18,0.12) → rgba(0,0,0,0.1) Display font
Anthropic Serif → OpenAI Sans Body size
17px → 16px colors 50 changed
~
bg #f8f8f6 → #ffffff ~
bg-soft #faf9f5 → #f1f1f1 ~
surface #ffffff → #fafafa ~
text #121212 → #000000 ~
text-muted #666660 → #5d5d5d ~
text-subtle #8e8e85 → #8e8e8e ~
text-faint #b4b4a8 → #b4b4b4 ~
text-on-dark #f3f0ea → #ededed ~
brand #cd6f47 → #000000 ~
link #121212 → #000000 ~
link-hover #cd6f47 → #5d5d5d ~
link-visited #7d3c1f → #000000 ~
border rgba(18,18,18,0.12) → rgba(0,0,0,0.1) ~
border-soft rgba(18,18,18,0.06) → rgba(0,0,0,0.08) ~
border-strong rgba(18,18,18,0.18) → rgba(0,0,0,0.16) ~
scrim rgba(18,18,18,0.45) → rgba(0,0,0,0.5) ~
shadow-card rgba(18,18,18,0.06) → rgba(0,0,0,0.06) ~
shadow-elev rgba(18,18,18,0.10) → rgba(0,0,0,0.10) ~
shadow-modal rgba(18,18,18,0.18) → rgba(0,0,0,0.20) ~
success #5a8c5a → #10a37f ~
warning #b58a3c → #d97706 ~
warning-soft #fbf3df → #fdf3e7 ~
danger #b54a3c → #cc2525 ~
danger-soft #fbe8e3 → #fae5e5 ~
info #5a708c → #3a3a3a +
bg-section #f7f7f7 +
surface-card #ffffff +
surface-hover rgba(0,0,0,0.04) +
surface-press rgba(0,0,0,0.08) +
brand-hover #1a1a1a +
brand-active #2c2c2c +
brand-on-dark #ffffff +
accent #10a37f +
accent-hover #0d8a6b +
accent-soft #d6f3e8 −
bg-deep #f0efea −
surface-soft #fbfaf6 −
surface-warm #f3f0ea −
text-on-cta #f8f8f6 −
brand-soft #f3e7df −
brand-paler #fdf0e8 −
brand-strong #a85530 −
brand-deep #7d3c1f −
cta-bg #121212 −
cta-text #f8f8f6 −
cta-hover #2a2a2a −
cta-active #3d3d3d −
shadow-warm rgba(18,18,18,0.04) −
success-soft #e6efe2 −
highlight #fbe8d6 typography 5 changed
~
display {"family":"Anthropic Serif","size":56} → {"family":"OpenAI Sans","size":48} ~
h1 {"family":"Anthropic Serif","size":48} → {"family":"OpenAI Sans","size":40} ~
h2 {"family":"Anthropic Serif","size":40} → {"family":"OpenAI Sans","size":32} ~
body {"family":"Anthropic Sans","size":17} → {"family":"OpenAI Sans","size":16} ~
label {"family":"Anthropic Mono","size":12} → {"family":"OpenAI Sans Mono","size":12} radius identical
No differences.
spacing identical
No differences.