duolingo.com10
Colors
Spacing
xs
4px
sm
8px
md
16px
lg
24px
xl
40px
gutter
16px
margin
24px
Rounded
none0px
sm4px
md8px
lg16px
xl24px
full9999px
Shadows
sm
0 2px 4px 0 rgba(0, 0, 0, 0.08)
md
0 4px 8px 0 rgba(0, 0, 0, 0.10)
lg
0 8px 16px 0 rgba(0, 0, 0, 0.12)
xl
0 16px 32px 0 rgba(0, 0, 0, 0.14)
Font
din-round
Aa Bb Cc 0123
ABCDEFGHIJKLMNOPQRSTUVWXYZ · abcdefghijklmnopqrstuvwxyz
Heading
Headline Displaydin-round · 2.5rem · 700
Display headline
Headline LGdin-round · 2rem · 700
The quick brown fox
Headline MDdin-round · 1.75rem · 700
Design systems at scale
Headline SMdin-round · 1.5rem · 700
Color, type, and spacing
Text
Body LGdin-round · 1.25rem · 500
The quick brown fox jumps over the lazy dog. Lead paragraph copy for marketing pages.
Body MDdin-round · 1rem · 500
The quick brown fox jumps over the lazy dog. Standard body copy throughout the application.
Body SMdin-round · 0.875rem · 400
Supporting text, captions, and metadata appear at this size.
Label LGdin-round · 1.5rem · 700
Button label · Primary action
Label MDdin-round · 1rem · 700
Form label · Required field
Label SMdin-round · 0.75rem · 700
Badge · Tag · Micro-copy