Claude.ai vs Optimism
69 token-level differences between these two design systems.
Background
#f8f8f6 → #ffffff Text
#121212 → #000000 Brand
#cd6f47 → #ff0420 Border
rgba(18,18,18,0.12) → #e0e0e0 Display font
Anthropic Serif → Optimism Display Body size
17px → 16px colors 61 changed
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bg #f8f8f6 → #ffffff ~
bg-soft #faf9f5 → #f5f5f5 ~
text #121212 → #000000 ~
text-muted #666660 → #5a5a5a ~
text-subtle #8e8e85 → #8a8a8a ~
text-on-dark #f3f0ea → #ffffff ~
brand #cd6f47 → #ff0420 ~
brand-soft #f3e7df → #ff04201a ~
brand-deep #7d3c1f → #7d020f ~
link #121212 → #ff0420 ~
link-hover #cd6f47 → #cc0319 ~
border rgba(18,18,18,0.12) → #e0e0e0 ~
border-soft rgba(18,18,18,0.06) → #ebebeb ~
border-strong rgba(18,18,18,0.18) → #c0c0c0 ~
scrim rgba(18,18,18,0.45) → rgba(0,0,0,0.65) +
bg-strong #e6e6e6 +
bg-dark #000000 +
bg-dark-elev #1a1a1a +
bg-dark-deep #0a0a0a +
surface-card #ffffff +
surface-card-soft #f5f5f5 +
text-body #1a1a1a +
text-on-dark-soft #a8a8a8 +
brand-hover #cc0319 +
brand-active #a30214 +
brand-glow rgba(255,4,32,0.40) +
brand-bright #ff3344 +
semantic-up #10b981 +
semantic-down #ef4444 +
semantic-warning #f59e0b +
semantic-info #ff0420 +
gradient-hero linear-gradient(135deg, #000000 0%, #1a1a1a 60%, #7d020f 100%) +
gradient-red linear-gradient(135deg, #ff0420 0%, #cc0319 100%) +
focus-ring rgba(255,4,32,0.45) −
bg-deep #f0efea −
surface #ffffff −
surface-soft #fbfaf6 −
surface-warm #f3f0ea −
text-strong #000000 −
text-faint #b4b4a8 −
text-on-brand #ffffff −
text-on-cta #f8f8f6 −
brand-paler #fdf0e8 −
brand-strong #a85530 −
cta-bg #121212 −
cta-text #f8f8f6 −
cta-hover #2a2a2a −
cta-active #3d3d3d −
link-visited #7d3c1f −
shadow-warm rgba(18,18,18,0.04) −
shadow-card rgba(18,18,18,0.06) −
shadow-elev rgba(18,18,18,0.10) −
shadow-modal rgba(18,18,18,0.18) −
success #5a8c5a −
success-soft #e6efe2 −
warning #b58a3c −
warning-soft #fbf3df −
danger #b54a3c −
danger-soft #fbe8e3 −
info #5a708c −
highlight #fbe8d6 typography 5 changed
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display {"family":"Anthropic Serif","size":56} → {"family":"Optimism Display","size":72} ~
h1 {"family":"Anthropic Serif","size":48} → {"family":"Optimism Display","size":40} ~
h2 {"family":"Anthropic Serif","size":40} → {"family":"Optimism Display","size":32} ~
body {"family":"Anthropic Sans","size":17} → {"family":"Inter","size":16} ~
label {"family":"Anthropic Mono","size":12} → {"family":"JetBrains Mono","size":11} radius 2 changed
~
button 8px → 12px ~
pill 9999px → 999px spacing 1 changed
~
xl 48px → 64px