Archdaily
Ecosystem Index
Deep charcoal expanse, crisp sans-serif clarity, softly structured open space.




Click any value to copy. Roles are suggestions, not gospel.
Read off the live site. Treat it as reference, not a recipe.
| Role | Family | Size | Weight | Leading | Tracking | Sample |
|---|---|---|---|---|---|---|
| h2 | Mona Sans | 16px | 600 | 1.5 | 0 | Aa Bb Cc |
| h3 | Mona Sans | 20px | 600 | 1.2 | -0.2px | Aa Bb Cc |
| body | Mona Sans | 14px | 400 | 1.5 | 0 | Aa Bb Cc |
| button | Mona Sans | 14px | 400 | 1.5 | 0 | Aa Bb Cc |
Max content width 1440px
:root {
--color-dominant: #eb0616;
--color-surface: #05991e;
--color-ink: #ebbe75;
--color-accent: #a27551;
--color-detail: #8f8cbc;
}
/* CSS variables exposed by source */
:root {
--color-action-list-item-danger-hover-text: #d1242f;
--brand-animation-variant-scaleInLeft-end: 1;
--color-scale-gray-3: #afb8c1;
--color-scale-orange-9: #471700;
--brand-text-weight-300: 450;
--color-scale-purple-4: #a475f9;
--color-checks-input-bg: #32383f;
--brand-breakpoint-xlarge: 80rem;
--text-body-size-medium: 0.875rem;
--color-action-list-item-default-hover-border: #0000;
--color-success-subtle: #dafbe1;
--brand-color-text-muted: #57606a;
--fontStack-sansSerif: -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";
--brand-breakpoint-xsmall: 20rem;
--brand-breakpoint-large: 63.25rem;
--color-btn-primary-shadow: 0 1px 0 #1f23281a;
--color-scale-orange-1: #ffd8b5;
--text-codeBlock-size: 0.8125rem;
--brand-control-medium-lineBoxHeight: 1rem;
--brand-text-letterSpacing-100: 0.02em;
--brand-body-fontFamily: "Mona Sans","MonaSansFallback",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";
--color-codemirror-guttermarker-subtle-text: #6e7781;
--brand-text-size-700: 3rem;
--brand-animation-variant-scaleInRight-distance: -1.25rem;
--color-prettylights-syntax-meta-diff-range: #8250df;
--text-body-shorthand-small: 450 0.75rem /1.6666 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";
--color-checks-logline-error-bg: #a40e2626;
--color-ansi-yellow-bright: #633c01;
--brand-box-spacing-normal: 1.5rem;
--brand-borderRadius-small: 0.25rem;
--text-title-size-large: 2rem;
--color-canvas-default-transparent: #fff0;
--color-project-gradient-out: #fff0;
--brand-stack-gap-spacious: 3rem;
--color-prettylights-syntax-variable: #953800;
--brand-text-subhead-size-medium: 1rem;
--color-codemirror-activeline-bg: #eaeef280;
--color-prettylights-syntax-markup-ignored-text: #eaeef2;
--color-scale-blue-3: #54aeff;
--brand-control-large-paddingBlock-condensed: 0.75rem;
--color-scale-yellow-1: #fae17d;
--color-checks-scrollbar-thumb-bg: #57606a;
--color-scale-coral-0: #fff0eb;
--color-checks-dropdown-hover-text: #f6f8fa;
--color-checks-ansi-yellow-bright: #eac54f;
--color-open-subtle: #dafbe1;
--color-scale-gray-6: #57606a;
--color-checks-header-label-text: #d0d7de;
--color-codemirror-guttermarker-text: #fff;
--text-subtitle-weight: 450;
--brand-button-primary-bgColor-rest: #1f2328;
--brand-text-letterSpacing-700: -0.03em;
--color-sponsors-fg: #bf3989;
--color-ansi-red: #cf222e;
--color-scale-pink-2: #ffadda;
--color-mktg-btn-shadow-focus: #00000026 0 0 0 4px;
--brand-control-large-lineBoxHeight: 1.25rem;
--text-codeInline-size: 0.9285em;
--brand-heading-lineHeight-1000: 1;
--brand-animation-transition-default: opacity 0.6s cubic-bezier(0.16,1,0.3,1),transform 0.6s cubic-bezier(0.16,1,0.3,1);
}Drop-in prompt
Build a landing page in the visual style of Github Blog.
Reference design system (extracted from the live site):
- Palette: #eb0616, #05991e, #ebbe75, #a27551, #8f8cbc
- Typefaces: Mona Sans
- Macrostructure: Ecosystem Index
Use the dominant colour for surfaces, the accent sparingly,
and lean on type weight + scale rather than colour for hierarchy.
Full DESIGN.md: https://inspomcp.dev/api/design/github-blog--news-insights-the-library-repo-transfers