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Dovetail. Blueprint control room at midnight.

  • SaaS
  • Dark theme
  • 10 colors
  • 2 typefaces

Dovetail's design language is a dark command center: near-black canvas, subtle grid wireframes, and cool gray type that recedes so charts and data can lead. A single vivid cornflower blue (#6798ff) acts as the system's only chromatic accent — it appears on the announcement bar, feature icons, and active highlights, never as decorative noise. Typography is Inter at every layer with progressively tighter tracking as sizes grow (from -0.012em at 14px to -0.036em at 64px), giving headlines a compressed, engineered quality rather than a marketing gloss. Components are weightless: 8px radii, hairline borders at #1e1e1 or #313131, zero shadows, and flat surfaces that stack through tone rather than elevation. The overall rhythm is compact, technical, and instrument-like — a tool room, not a pitch deck.

Screenshot of Dovetail
Captured from dovetailapp.com on October 11, 2026

Dovetail design system

Dovetail

Accent1

  • Accent for announcement bar, feature icons, active states, and data highlight strokes

Neutrals9

  • Pure black used in SVG illustration fills and contrast anchors

  • Primary page background — the dark canvas that everything sits on

  • Alternate surface level for nested cards and section backgrounds

  • Card surfaces, button backgrounds, and key borders that delineate panels

  • Hairline borders on image frames and subtle dividers

  • Mid-tone borders on outline buttons and input frames

  • Disabled or de-emphasized button text

  • Secondary body text, borders on muted elements, icon strokes

  • Primary text, primary filled button background, icon fills, nav links

Try a pairing

Pick any two colors from the palette to check whether text stays readable on top.

Aa

Onyx on Blue Cornflower

7.51 : 1 contrast

Background
Text
  • Body textPasses AA 4.5
  • Large textPasses AA 3
  • StrictPasses AAA 7

More DESIGN.md files. Same web, different personalities.