Duolingo

The free, fun, and effective way to learn a language.

verifiedduolingo.com

Duolingo makes learning fun and accessible to everyone. Bite-sized lessons, a streak that keeps you coming back, and Duo the owl cheering (and occasionally guilt-tripping) you along the way. The brand is bright, rounded, and unmistakably playful — a family of candy-colored named hues on generous white, held together by the chunky Feather display type.

Color

primary

Feather Green

#58cc02

The signature green — primary buttons, correct answers, Duo.

secondary

Lime Green

#58cc02

Secondary brand color.

accent

Light Green

#a5ed6e

Accent: highlights and secondary emphasis.

surface

White

#ffffff

Page and card background.

text

Black

#000000

Body text on surface.

Typography

heading → duolingo-sans

duolingo-sansduolingo-sans

custom

The free, fun, and effective way to learn a language.

Weights:: 400, 600, 700

Auto-detected web font; provenance unconfirmed. Reference only — never rehost without a license.

Gradient

Derived from the colour roles, interpolated perceptually. The same three tokens ship in brand.css and tokens.json.

Brand--brand-gradient

linear-gradient(135deg in oklch shorter hue, #9eff74 0%, #58cc02 50%, #298f00 100%)

Worst-case contrast — white 1.24:1 · black 5.02:1 AA

Hero--brand-gradient-hero

linear-gradient(135deg in oklch shorter hue, #ccedc0 0%, #95ba88 50%, #63815d 100%)

Worst-case contrast — white 1.28:1 · black 4.83:1 AA · ink #000000

Button--brand-gradient-button

linear-gradient(180deg in oklch shorter hue, #66d926 0%, #4abf00 100%)

Worst-case contrast — white 1.82:1 · black 8.74:1 AA · ink #000000

Logo Inventory

primary

svg

mark

svg

wordmark

svg

mono

svg

inverse

svg

favicon

ico

app-icon

png

Marks from Simple Icons (CC0). Licences and attribution

mcpConnect your agent to Duolingo

live endpoint

Point any MCP client at this brand and every session grounds itself in the real system — colors, type, voice, usage rules. Read-only.

endpointhttps://mcp.brandsweets.com/duolingo/mcp

.mcp.json

{
  "mcpServers": {
    "brandsweets-duolingo": {
      "type": "http",
      "url": "https://mcp.brandsweets.com/duolingo/mcp"
    }
  }
}

claude codeclaude mcp add --transport http brandsweets-duolingo https://mcp.brandsweets.com/duolingo/mcp

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