Things 3 (iOS)

Identity

Mobile Apps

Serene tasks. Things Blue #4F97FF on pure-white, circular checkbox fill spring, the Magic-Plus, the #FFD60A Today star, generous calm whitespace

Typography

-apple-systemDisplay400 / 600 / 700

-apple-systemBody

Ag

ui-monospaceMono

--text-4xl · 36pxThe quick brown fox

--text-3xl · 28pxThe quick brown fox

--text-2xl · 24pxThe quick brown fox

--text-xl · 17pxThe quick brown fox

--text-lg · 16pxThe quick brown fox

--text-base · 15pxThe quick brown fox

--text-sm · 14pxThe quick brown fox

--text-xs · 12pxThe quick brown fox

Palette

--bg#FFFFFFPage background — defines the brand canvas.

--surface#F5F6F8Card / lifted container background.

--surface-warmcolor-mix(in oklab, var(--surface), var(--fg) 6%)Tertiary surface tier (kami warm-sand).

--fg#1D1D1FPrimary text color.

--fg-2color-mix(in oklab, var(--fg), var(--bg) 15%)Secondary text tier (kami dark-warm).

--muted#8A8A8ESubtext / captions.

--metacolor-mix(in oklab, var(--muted), var(--bg) 25%)Tertiary FG / metadata tier (kami stone).

--border#ECECECDefault border / card edge.

--border-softcolor-mix(in oklab, var(--border), var(--bg) 50%)Inner row separator that should not visually compete.

--accent#4F97FFBrand accent. ≤2 visible uses per screen (lint enforced).

--accent-on#FFFFFFFG when --accent is the bg.

--success#34C759Success state.

--warn#FF9500Warning state.

--danger#FF3B30Danger state.

Also named in DESIGN.md

Blue Pressed#3d7fe0Active/pressed state for blue controls.

Today Yellow#ffd60aThe "Today" list star, the star badge on a task scheduled for today — the single warm accent.

Yellow Pressed#e6be00Pressed state for the Today star control.

Text Tertiary#c7c7ccDisabled, placeholder, completed-task strike text, very low emphasis.

Dark Canvas#1c1c1e

Imagery & layout

Radius

--radius-sm8px

--radius-md10px

--radius-lg10px

--radius-pill9999px

Spacing

--space-1 · 4px

--space-2 · 8px

--space-3 · 12px

--space-4 · 16px

--space-5 · 20px

--space-6 · 24px

--space-8 · 32px

--space-12 · 48px

Elevation

--elev-raised

Layout

Layout rules

Base unit: 4pt
Scale: 4, 8, 12, 16, 20, 24, 32, 44, 56
Standard margin: 20pt horizontal (more generous than typical 16pt — part of the calm)
To-do rows: 12pt vertical breathing inside the 44pt min height; 0pt between rows (whitespace + dividers carry it)
Content width: full device width with generous 20pt horizontal margins
Single column lists; iPad uses sidebar + list (+ optional project detail) panes

Component kit

Light Dark