OpenAI vs GitHub Copilot
56 token-level differences between these two design systems.
Background
#ffffff → #ffffff Text
#000000 → #1f2328 Brand
#000000 → #000000 Border
rgba(0,0,0,0.1) → #d0d7de Display font
OpenAI Sans → Mona Sans Body size
16px → 18px colors 49 changed
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surface #fafafa → #f6f8fa ~
text #000000 → #1f2328 ~
text-muted #5d5d5d → #59636e ~
text-subtle #8e8e8e → #6e7781 ~
text-on-dark #ededed → #f0f6fc ~
brand-hover #1a1a1a → #1f2328 ~
brand-active #2c2c2c → #3d444d ~
accent #10a37f → #0969da ~
accent-hover #0d8a6b → #0550ae ~
accent-soft #d6f3e8 → #ddf4ff ~
border rgba(0,0,0,0.1) → #d0d7de ~
border-strong rgba(0,0,0,0.16) → #afb8c1 ~
scrim rgba(0,0,0,0.5) → rgba(140,149,159,0.15) ~
success #10a37f → #1a7f37 ~
warning #d97706 → #9a6700 ~
warning-soft #fdf3e7 → #fff8c5 ~
danger #cc2525 → #cf222e ~
danger-soft #fae5e5 → #ffebe9 +
bg-inverse #0d1117 +
bg-overlay #ffffffee +
surface-strong #eaeef2 +
surface-on-dark #161b22 +
surface-strong-on-dark #21262d +
text-on-dark-muted #9198a1 +
brand-on-dark-hover #f0f6fc +
accent-emphasis #0969da +
accent-on-dark #4493f8 +
success-soft #dafbe1 +
done #8250df +
border-muted #d8dee4 +
border-on-dark #3d444d +
shadow-small rgba(31,35,40,0.04) +
shadow-medium rgba(31,35,40,0.08) +
shadow-large rgba(31,35,40,0.12) −
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-faint #b4b4b4 −
text-on-brand #ffffff −
link #000000 −
link-hover #5d5d5d −
link-visited #000000 −
border-soft rgba(0,0,0,0.08) −
shadow-card rgba(0,0,0,0.06) −
shadow-elev rgba(0,0,0,0.10) −
shadow-modal rgba(0,0,0,0.20) −
info #3a3a3a typography 5 changed
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display {"family":"OpenAI Sans","size":48} → {"family":"Mona Sans","size":96} ~
h1 {"family":"OpenAI Sans","size":40} → {"family":"Mona Sans","size":64} ~
h2 {"family":"OpenAI Sans","size":32} → {"family":"Mona Sans","size":56} ~
body {"family":"OpenAI Sans","size":16} → {"family":"Mona Sans","size":18} ~
label {"family":"OpenAI Sans Mono","size":12} → {"family":"MonaspiceNe","size":12} radius identical
No differences.
spacing 2 changed
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lg 32px → 40px ~
xl 48px → 64px