Design language comparison

Anthropic vs Cal.com

Two references, one frame. Palette, typography and the curator verdict for Anthropic and Cal.com, read side by side.

Palette & spacing overlap

Palette

Shared (1)

#000000

Anthropic only

#141413#b0aea5#faf9f5#87867f#eda100

Cal.com only

#242424#898989#ffffff#0000ee#e0e0e0#e5e7eb#374151#9ca3af#7826b1#e9ddfd#882c2f#d85b5f#f8d7d8#d6ecfe

Spacing scale (px)

Shared (8)

2px4px8px12px16px24px28px32px

Anthropic only

22px48px53px59px

Cal.com only

6px10px20px40px

Anthropic

ai · Light

anthropic.com

Palette

#141413: _color-theme---button-tertiary--text-hover
#b0aea5: swatch--cloud-medium
#faf9f5: _color-theme---button-secondary--text-hover
#000000: foreground
#87867f: swatch--cloud-dark

Typography

Anthropic SansAnthropic Serif

Cal.com

saas · productivity · Light

cal.com

Palette

#000000: foreground
#242424: foreground
#898989: background
#ffffff: background
#0000ee: accent

Typography

Cal Sans UI Variable Lightsans-serif

Typography

Display / body / mono + weight ladder

Side A · Light

Anthropic

Display: Anthropic Sans
Body: Anthropic Serif
Mono: Anthropic Mono

Weight ladder

400500600700

Side B · Light

Cal.com

Display: Cal Sans UI Variable Light
Body: sans-serif

Weight ladder

300

Spacing scale

Base unit + container + first 8 steps

Side A · Light

Anthropic

Base unit: 4 px
Container: 1272 px

2px

4px

8px

12px

16px

22px

24px

28px

Side B · Light

Cal.com

Base unit: 4 px
Container: 1280 px

2px

4px

6px

8px

10px

12px

16px

20px

Motion vocabulary

Level + libraries + durations + easings

Side A · Light

Anthropic

Level: moderate
Libraries: GSAP

Durations

0.1s0.2s0.3s0.4s0.8s

Easings

easecubic-bezier(0.16, 1, 0.3...cubic-bezier(0.77, 0, 0.1...ease-in

Side B · Light

Cal.com

Level: moderate
Libraries: Framer Motion

Durations

0.2s

Easings

ease-outease