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Design language comparison

Comet vs Slash

Comet runs a dark-canvas system while Slash chose both, and they pair different display families (system-ui vs __Inter_f367f3). Beyond surface, motion levels are both expressive.

Palette · side by side

Up to 8 dominant swatches each

Side A · dark

Comet

Full Page

#313131

foreground

#0000ee

brand

#d9d9d9

neutral

Side B · both

Slash

Full Page

#ffffff

background

#e2e3e9

foreground

#000000

foreground

#9194a1

foreground

#777a88

foreground

#1c1d22

foreground

#5e616e

background

#cc9166

accent

Typography · side by side

Primary family + weight ladder + sample

Side 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 · both

Slash

Full Page

Display
__Inter_f367f3
Body
__ivyPresto_6eafe2
Weights
300 · 400 · 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 values

Side A · dark

Comet

Full Page

Base unit
8 px
Container max
960 px
8px
16px
32px
128px

Side B · both

Slash

Full Page

Base unit
4 px
Container max
704 px
2px
4px
6px
8px
10px
12px
14px
16px

Motion vocabulary · side by side

Level + durations + easings

Side A · dark

Comet

Full Page

Level
expressive
Libraries

Durations

400ms600ms900ms1200ms

Easings

cubic-bezier(0.16, 1, 0.3…cubic-bezier(0.22, 1, 0.3…

Side B · both

Slash

Full Page

Level
expressive
Libraries
Framer Motion

Durations

75ms150ms200ms300ms

Easings

cubic-bezier(0.4, 0, 0.2, 1)

Palette & spacing overlap

Palette overlap is zero — Comet and Slash 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 Slash's expressive motion vocabulary produces visual whiplash. Adopt one system as your primary, study the other for individual technique transfers (e.g. Comet's spacing, Slash's shadow).

Full Comet brief →Full Slash brief →Back to gallery

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