claude.ai12
Colors
Spacing
xs
4px
sm
8px
md
16px
lg
24px
xl
40px
gutter
16px
margin
24px
Rounded
none0px
sm0.25rem
md0.375rem
lg0.5rem
xl0.75rem
full9999px
Shadows
sm
0 1px 2px 0 rgba(0,0,0,0.06)
md
0 3px 3px 0 rgba(0,0,0,0.12)
lg
0 4px 4px 0 rgba(0,0,0,0.15)
xl
0 8px 24px -2px rgba(0,0,0,0.12)
Font
Anthropic Sans
Aa Bb Cc 0123
ABCDEFGHIJKLMNOPQRSTUVWXYZ · abcdefghijklmnopqrstuvwxyz
Anthropic Serif
Aa Bb Cc 0123
ABCDEFGHIJKLMNOPQRSTUVWXYZ · abcdefghijklmnopqrstuvwxyz
Heading
Headline DisplayAnthropic Serif · 56px · 330
Display headline
Headline LGAnthropic Serif · 2.25rem · 400
The quick brown fox
Headline MDAnthropic Serif · 1.875rem · 400
Design systems at scale
Headline SMAnthropic Serif · 1.5rem · 400
Color, type, and spacing
Text
Body LGAnthropic Sans · 1.125rem · 400
The quick brown fox jumps over the lazy dog. Lead paragraph copy for marketing pages.
Body MDAnthropic Sans · 1rem · 400
The quick brown fox jumps over the lazy dog. Standard body copy throughout the application.
Body SMAnthropic Sans · 0.875rem · 400
Supporting text, captions, and metadata appear at this size.
Label LGAnthropic Sans · 1rem · 500
Button label · Primary action
Label MDAnthropic Sans · 0.875rem · 500
Form label · Required field
Label SMAnthropic Sans · 0.75rem · 400
Badge · Tag · Micro-copy