Design language comparison
Comet vs PromptWatch
Both Comet and PromptWatch commit to a dark-canvas approach, and they pair different display families (system-ui vs ui-sans-serif). Beyond surface, motion divides them — Comet is expressive, PromptWatch is moderate.
Palette · side by side
Up to 8 dominant swatches eachSide A · dark
Comet
Full Page
#313131
foreground
#0000ee
brand
#d9d9d9
neutral
Side B · dark
PromptWatch
Full Page
#000000
foreground
#ffffff
background
#ff492c
brand
#22b8cd
accent
#3186ff
accent
#d97757
accent
#34a853
accent
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 · dark
PromptWatch
Full Page
- Display
- aeonikPro
- Body
- ui-sans-serif
- Mono
- Geist Mono
- Weights
- 500 · 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 · dark
PromptWatch
Full Page
- Base unit
- 4 px
- Container max
- 1104 px
Motion vocabulary · side by side
Level + durations + easingsSide A · dark
Comet
Full Page
- Level
- expressive
- Libraries
- —
Durations
Easings
Side B · dark
PromptWatch
Full Page
- Level
- moderate
- Libraries
- Framer Motion
Durations
Easings
Palette & spacing overlap
Palette overlap is zero — Comet and PromptWatch live in completely different chromatic registers, even when their layout grids feel adjacent. Their spacing scales overlap by 17% (8, 16 px shared) — a rhythm any agent can transfer between the two systems with minimal recalibration.
Curator verdict
Pick a side. Mixing Comet's dark-first canvas with PromptWatch's moderate motion vocabulary produces visual whiplash. Adopt one system as your primary, study the other for individual technique transfers (e.g. Comet's spacing, PromptWatch's shadow).