Brand Kit

The frontier lab notebook: the locked v1 visual system for RheumAI. Cool ground, one blue voice, serif for the read and sans for the scan, sharp corners, and a single soft lift. Everything here is drawn straight from RHEUMAI-DESIGN.md.

v1 · locked 2026-08-22 Claude for Rheumatology Reference build: /explore

Wordmark

"RheumAI" in Funnel Display, the exact PoktaCare / PoktaLabs lockup with the name swapped: Rheum in ink, AI in Signal Blue, no space. Text-only in v1.

RheumAI

Font: Funnel Display Variable, weight 500, letter-spacing -0.025em
Color: Rheum = ink (adapts per theme) · AI = Signal Blue, the brand hue. Fills stay #3333DE in both themes; as wordmark / thin text it is #3333DE on light and #5A5AFF on dark, so it stays legible on the near-black ground.
Lockup: One word, two tones, no space. Same treatment as PoktaCare and PoktaLabs.
Usage: Navbar (left) and footer, same size. Funnel Display is used for nothing else.

Color

A cool, blue-biased neutral system with one saturated blue voice and a restrained semantic set. Every token is defined for both themes.

Light theme

Ground

#F5F6F9

page background

Raised

#ECEEF3

panels, focus surface

Card

#FFFFFF

framed screens

Ink

#14161C

primary text

Muted

#545B6B

secondary text

Faint

#868D9E

meta, placeholders

Rule

#E1E4EC

hairlines

Signal Blue

#3333DE

brand — fill + ink

Dark theme

Ground

#141621

page background

Raised

#1E2130

panels, focus surface

Card

#1A1D2A

framed screens

Ink

#E9EBF2

primary text

Muted

#A2A9BA

secondary text

Faint

#6E7585

meta, placeholders

Rule

#2C3040

hairlines

Signal Blue — fill

#3333DE

buttons, bars (fixed)

Signal Blue — ink

#5A5AFF

wordmark, links, rings

Semantic (status, not the brand color)

Confirm

#1F7A54 / #57C89A

confirmed, complete

Attention

#9C6A15 / #E0A24A

missing, not blocking

Blocker

#C1362B / #F0796B

rationed: true blockers

Typography

Serif reads, sans is scanned, mono is machine-exact, Funnel Display is the wordmark. No clinical value or name is ever serif or italic.

Source Serif 4Titles & prose
500 / -0.02em

Revisar extracción

ManropeData & values
600 / tabular / upright

12.0 mg/L

ManropeUI & labels
400–600

Confirmar valor contra la nota fuente. Diagnóstico confirmado.

MonoCodes & IDs
tabular

TJC28 · DAS-28 · 521 5500 0017

Funnel DisplayWordmark only
500 / -0.025em

RheumAI

Shape & elevation

Zero radius everywhere. Hairline borders divide; one soft shadow lifts the active surface. No grain, no gradients, no rounded cards.

Framed surface

Square corners, a 1px hairline border, and the single soft lift shadow. This is the only elevated surface treatment in the system.

Raised panel

Flat, no shadow. Grouping comes from the tonal step and the hairline, not from elevation.

Components

Buttons

Status pills

Completo 3 campos faltan Bloqueado

Review queue states

Diagnósticoconfirmado PCR (CRP)ahora TJC28falta

Principles

Serif reads, sans is scanned

Serif for titles and prose; sans with tabular figures for every datum, name and value; mono for codes. No finding is ever italic.

Approval, not data entry

The AI's extracted value leads; the clinician confirms or corrects. Screens are review surfaces, not the blank registry we exist to replace.

One blue voice

Signal Blue is the only brand color — one hue in both themes. It fills as #3333DE everywhere; as thin text it is #3333DE on light and #5A5AFF on dark, so it reads on the near-black ground. Green, amber and red are status, never brand.

Rationed red, sharp corners

Red marks only what blocks the send; missing-but-not-blocking is amber. Zero radius everywhere; one soft shadow for lift.