Design language comparison
Comet vs xAI
Comet runs a dark-canvas system while xAI chose light, and they pair different display families (system-ui vs -apple-system). Beyond surface, motion divides them — Comet is expressive, xAI is subtle.
Palette · side by side
Up to 8 dominant swatches eachSide A · dark
Comet
Full Page
#313131
foreground
#0000ee
brand
#d9d9d9
neutral
Side B · light
xAI
Full Page
#404040
foreground
#595959
foreground
#0051c3
brand
#000000
foreground
#ffffff
background
#ebebeb
background
Typography · side by side
Primary family + weight ladder + sampleSide A · dark
Comet
Full Page
- Display
- system-ui
- Body
- monospace
- Mono
- monospace
- Weights
- 400 · 600
Sample
The quick brown fox jumps over the lazy dog.
1234567890 — Body sample renders in the captured family if your browser has it; otherwise system fallback signals the weight ladder.
Side B · light
xAI
Full Page
- Display
- -apple-system
- Body
- Times New Roman
- Weights
- 300 · 400 · 600
Sample
The quick brown fox jumps over the lazy dog.
1234567890 — Body sample renders in the captured family if your browser has it; otherwise system fallback signals the weight ladder.
Spacing scale · side by side
Base unit + first 8 scale valuesSide A · dark
Comet
Full Page
- Base unit
- 8 px
- Container max
- 960 px
Side B · light
xAI
Full Page
- Base unit
- 4 px
- Container max
- 1536 px
Motion vocabulary · side by side
Level + durations + easingsSide A · dark
Comet
Full Page
- Level
- expressive
- Libraries
- —
Durations
Easings
Side B · light
xAI
Full Page
- Level
- subtle
- Libraries
- —
Durations
Easings
Palette & spacing overlap
Palette overlap is zero — Comet and xAI live in completely different chromatic registers, even when their layout grids feel adjacent. Spacing scales diverge entirely — agents porting components from one to the other should expect to re-derive the ladder, not interpolate.
Curator verdict
Pick a side. Mixing Comet's dark-first canvas with xAI's subtle motion vocabulary produces visual whiplash. Adopt one system as your primary, study the other for individual technique transfers (e.g. Comet's spacing, xAI's shadow).