Decagon — design system & UI screens

AI · 1 screen · 11 sections · https://decagon.ai/

Dreamy lavender-gradient hero with a moon and strolling-figures illustration; 'Build, optimize, and scale AI agents', an email-capture and a quiet logo wall (Hertz, Oura, Avis, Duolingo).

Open in Mozaika →

This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/website/decagon.

Decoded design system

Decagon's decoded design system: background #FFFFFF, text #0A0A0B, accent #5754FF, link #5754FF, primary #4643CC; type scale h1 72px / h2 40px / body 16px; 4px spacing base; 16px base radius. The single interactive/action color is #5754FF — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Role	Value
bg	`#FFFFFF`
surface	`#F0F0F0`
border	`#DADADA`
text	`#0A0A0B`
text_muted	`#676767`
primary	`#4643CC`
accent	`#5754FF`
link	`#5754FF`
secondary	`#5FC4FF`
button_bg	`#5754FF`
button_text	`#FFFFFF`

Using these colors

Action color #5754FF — the single interactive color; only on things you click or must notice, never large fills.
accent, link, button_bg are all #5754FF — one role, not several (the action color).
accent #5754FF — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.
primary #4643CC — a brand color — but the call-to-action uses #5754FF, not this.
secondary #5FC4FF — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.

Typography

Heading: FK Grotesk Neue
Body: Circularxx
h1: 72px
h2: 40px
body: 16px

Spacing

base unit: 4px
scale: 2px, 4px, 6px, 8px, 12px, 16px, 24px, 32px

Radii

base: 16px
button: 9999px

Shadow

rgba(255, 255, 255, 0) 0px 0px 16px 0px

Full design system, per-section tokens & DESIGN.md / Tailwind / CSS exports →