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Sunday. Monochrome magazine spread with one yellow highlight.

  • AI
  • Light theme
  • 10 colors
  • 3 typefaces

Sunday presents Memo in an editorial product-launch register: a pure white canvas dominated by massive single-weight headlines, photographic storytelling, and a single vivid yellow used as rare punctuation against a near-total absence of color. Typography is the brand — one weight (400) stretched across a scale from 14px to 142px, with slight negative tracking on display sizes, giving the page the cadence of a magazine spread rather than a software product page. The interface is sparse to the point of asceticism: centered navigation, no sidebar, no cards with shadows, no decorative gradient meshes. Color appears only as functional signal — yellow for highlight states and beta CTAs, black for everything else. The visual system reads as confidence through restraint: the robot does the talking, the page stays out of the way.

Screenshot of Sunday
Captured from sunday.ai on October 11, 2026

Sunday design system

Sunday

Brand1

  • Yellow supporting accent for decorative details and low-frequency emphasis

Accent2

  • Gradient stop in decorative card backgrounds — a muted sage fading into off-white, used only in gradient form

  • Warm card background — a near-gray beige for section bands, the only warm neutral in the system

Neutrals7

  • Hairline borders, footer background, maximum-emphasis text — used where Ink Black is not dark enough

  • Primary text, icons, button labels, nav links, form borders — the workhorse dark for all readable content

  • Secondary body text, muted descriptions, inactive form labels — the softest readable gray

  • Very subtle teal-tinted surface for rare color-washed sections — barely chromatic, almost a gray

  • Button hover surfaces, disabled states, hairline dividers, input backgrounds

  • Alternate section background, subtle card surface — a warm off-white for band variation without breaking the monochrome

  • Page background, card surfaces, button text on dark fills — the dominant canvas

Try a pairing

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

Aa

Pure Black on Lemon Highlight

16.43 : 1 contrast

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

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