Brand · v1 · 10 Sep 2026

The logo, and how to use it.

These are the official files. Use them as they are — never retype the name in a font, recolor it, or redraw the monogram.

Horizontal — the primary lockup

Site nav, email signature, PDF headers, invoices.

Version	Vector	PNG 1200	PNG 2400
Color — on light	svg	png	png
Dark — on #141619	svg	png	png
Black — 100% K	svg	png	png
White — reversed	svg	png	png

Narrow spaces and the one-pager cover.

Version	Vector	PNG 1200	PNG 2400
Color — on light	svg	png	png
Dark — on #141619	svg	png	png
Black — 100% K	svg	png	png
White — reversed	svg	png	png

Favicon and avatars. The tile is part of the mark, so it is opaque in every file and never sits on an unknown background.

Version	Vector	PNG 512	PNG 1024
Light tile	svg	png	png
Ink tile — default	svg	png	png
Black	svg	png	png
Reversed	svg	png	png
Favicon	svg	Live at /favicon.svg, /favicon.ico and /apple-touch-icon.png

Website, slides, documents	jpiv-horizontal-color.svg
Anything on a dark background	jpiv-horizontal-dark.svg
Invoices and one-color print	jpiv-horizontal-black.svg
Reversed out of a photo or dark fill	jpiv-horizontal-white.svg
One-pager cover, narrow columns	jpiv-stacked-color.svg
Email signature	email-signature@2x.png — insert at 300 px wide. PNG on white, because Gmail does not display SVG and a transparent logo disappears in dark-mode mail.
GitHub, Calendly, tool avatars	jpiv-monogram-dark-1024.png
Anything else that wants a PNG	The 2400 px version, scaled down — never scaled up.

Clear space	One cap height of the “J” on all four sides. Nothing crosses it — no rule, no table border, no signature block.
Minimum size	Horizontal 110 px wide · stacked 84 px wide · monogram 16 px square.
In the site nav	Set to the nav text’s cap height (8.73 px): 119 px wide, the same optical weight as the links.
Type	Archivo SemiBold, tracked −0.025em. The numeral is IBM Plex Mono Medium at 98.3% of the name’s size, so both cap heights match. Both are SIL Open Font License fonts; every file here is outlined, so no font is needed to open or print it.
Color	The IV is the only color in the mark. Everything else is ink.
Short form	JP IV — in text only: short links, handles, business cards, QR codes, said out loud. The short domain jp-iv.com (once registered) forwards every path to the same page here, so jp-iv.com/call opens the booking page. Never set it as a logo: the IV monogram is the mark, and the full name is the brand.
Don’t	Stretch, outline, shadow, recolor, or add a tagline. Don’t put the monogram on a transparent background. Don’t build a monogram from “JP”.