Duolingo

Identity

Productivity & SaaS

Bundled OpenDesign package for Duolingo, derived from curated DESIGN.md, tokens.css, and components.html fixtures.

Typography

Ag
Feather BoldDisplay
Ag
Mona SansBody
Ag
JetBrains MonoMono
--text-4xl · 56pxThe quick brown fox
--text-3xl · 40pxThe quick brown fox
--text-2xl · 32pxThe quick brown fox
--text-xl · 24pxThe quick brown fox
--text-lg · 18pxThe quick brown fox
--text-base · 15pxThe quick brown fox
--text-sm · 13pxThe quick brown fox
--text-xs · 12pxThe quick brown fox

Palette

--bg#ffffffPage background — defines the brand canvas.
--surface#f7f7f7Card / lifted container background.
--surface-warmvar(--surface)Tertiary surface tier (kami warm-sand).
--fg#3c3c3cPrimary text color.
--fg-2var(--fg)Secondary text tier (kami dark-warm).
--muted#777777Subtext / captions.
--meta#afafafTertiary FG / metadata tier (kami stone).
--border#e5e5e5Default border / card edge.
--border-softvar(--border)Inner row separator that should not visually compete.
--accent#58cc02Brand accent. ≤2 visible uses per screen (lint enforced).
--accent-on#ffffffFG when --accent is the bg.
--success#58cc02Success state.
--warn#ffc800Warning state.
--danger#ff4b4bDanger state.

Also named in DESIGN.md

Owl Green Deep#58a700Pressed/shadow color for green buttons.
Owl Green Light#89e219Hover, soft fills.
Owl Green Pale#dbf8c5Soft surface, success banner.
Streak Orange#ff9600Streak counter, fire icon, premium energy.
Streak Orange Deep#cc7a00Pressed orange.
Gem Pink#ce82ffGem currency, Super Duolingo.
Eel Blue#1cb0f6Hint button, info link.

Imagery & layout

Radius

--radius-sm12px
--radius-md16px
--radius-lg20px
--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

Component kit