Brand kit · assets & basics
Brand kit
Logos, colors, and type for polygraph.so. SVGs are the source-of-truth; PNGs are ready-to-use exports. Use the marks as-is — don’t recolor or redraw them.
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Logo
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Color
The core palette: warm parchment ground, ink text, oxblood accent. Hex values and CSS variables match web/app/globals.css.
Ink
#161512
--color-ink
Parchment
#f5f1e5
--color-parchment
Oxblood
#7a1f2b
--color-oxblood
Ink muted
#5c5550
--color-ink-muted
Ink faint
#8a8378
--color-ink-faint
Rule
#d9d2c2
--color-rule
The grade scale — the letters A–F carry their own muted, journal-appropriate colors.
Grade A
#2f5132
--color-grade-a
Grade B
#4f6b36
--color-grade-b
Grade C
#a86b19
--color-grade-c
Grade D
#b85024
--color-grade-d
Grade F
#7a1f2b
--color-grade-f
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Typography
Three families: a transitional serif for display, a humanist sans for body and UI, and a mono for labels and code.
Source Serif 4 · display / headings
Independent trust grades for AI tools
IBM Plex Sans · body / UI
A behavioral evaluation of an MCP server — what it does when exercised the way an agent would, not what its README says.
IBM Plex Mono · labels / code
npx polygraphso check <server>
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