Claude.ai vs On
74 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(0,0,0,0.08) Display font
Anthropic Serif → On Body size
17px → 16px colors 65 changed
~
bg #f8f8f6 → #ffffff ~
surface-soft #fbfaf6 → #f5f5f5 ~
surface-warm #f3f0ea → #fafafa ~
text #121212 → #000000 ~
text-muted #666660 → #525252 ~
brand #cd6f47 → #000000 ~
link #121212 → #000000 ~
link-hover #cd6f47 → #525252 ~
scrim rgba(18,18,18,0.45) → rgba(0,0,0,0.55) ~
success #5a8c5a → #1f8a4c ~
warning #b58a3c → #a35316 ~
danger #b54a3c → #d11507 ~
info #5a708c → #1151ff +
bg-dark #000000 +
ink #000000 +
ink-soft #0a0a0a +
charcoal #333333 +
mute #525252 +
mute-soft #767676 +
stone #9a9a9a +
hairline #d4d4d4 +
hairline-soft #e5e5e5 +
text-soft #767676 +
text-on-ink #ffffff +
brand-hover #1a1a1a +
brand-active #000000 +
pill-light #ffffff +
pill-light-text #000000 +
visited #000000 +
selected #000000 +
disabled-bg #e5e5e5 +
disabled-text #9a9a9a +
accent-coral #e63312 +
accent-coral-deep #b3260d +
sale #e63312 +
success-bright #34c873 +
ring #000000 +
ring-on-dark #ffffff −
bg-soft #faf9f5 −
bg-deep #f0efea −
text-subtle #8e8e85 −
text-faint #b4b4a8 −
text-on-brand #ffffff −
text-on-cta #f8f8f6 −
text-on-dark #f3f0ea −
brand-soft #f3e7df −
brand-paler #fdf0e8 −
brand-strong #a85530 −
brand-deep #7d3c1f −
cta-bg #121212 −
cta-text #f8f8f6 −
cta-hover #2a2a2a −
cta-active #3d3d3d −
link-visited #7d3c1f −
border rgba(18,18,18,0.12) −
border-soft rgba(18,18,18,0.06) −
border-strong rgba(18,18,18,0.18) −
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-soft #e6efe2 −
warning-soft #fbf3df −
danger-soft #fbe8e3 −
highlight #fbe8d6 typography 5 changed
~
display {"family":"Anthropic Serif","size":56} → {"family":"On","size":80} ~
h1 {"family":"Anthropic Serif","size":48} → {"family":"On","size":48} ~
h2 {"family":"Anthropic Serif","size":40} → {"family":"On","size":32} ~
body {"family":"Anthropic Sans","size":17} → {"family":"On","size":16} ~
label {"family":"Anthropic Mono","size":12} → {"family":"SFMono-Regular","size":13} radius identical
No differences.
spacing 4 changed
~
xs 4px → 0px ~
sm 8px → 4px ~
md 16px → 12px ~
xl 48px → 64px