Buildkite
Ecosystem Index
Cool, spacious digital atelier: soft blues and grays, clean sans-serif geometry.




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 |
|---|---|---|---|---|---|---|
| h1 | Mona Sans | 56px | 440 | 1.1 | 0 | Aa Bb Cc |
| h2 | Mona Sans | 34px | 500 | 1.3 | 0 | Aa Bb Cc |
| h3 | Mona Sans | 22px | 480 | 1.4 | 0 | Aa Bb Cc |
| body | -apple-system | 16px | 400 | 1.5 | 0 | Aa Bb Cc |
| button | Mona Sans VF | 14px | 500 | 1.5 | 0 | Aa Bb Cc |
Max content width 1440px
:root {
--color-dominant: #0716f6;
--color-surface: #0e2c9c;
--color-ink: #94b7ee;
--color-accent: #6eb184;
--color-detail: #a4c6ac;
}
/* CSS variables exposed by source */
:root {
--brand-animation-variant-scaleInLeft-end: 1;
--brand-text-weight-300: 400;
--bgColor-black: #1f2328;
--brand-control-radio-dot-checked-hover: color-mix(in srgb, #08872b, #000 26%);
--brand-RiverBreakout-variant-gridline-spacing-outerBlock: 4rem;
--brand-breakpoint-xlarge: 80rem;
--brand-RiverAccordion-variant-gridline-spacing-outerInline: 4rem;
--text-body-size-medium: .875rem;
--brand-Label-color-green-blue-start: #08872b;
--brand-Testimonial-quoteMarkBackground-teal: #daf9f5;
--brand-color-text-muted: #58635b;
--brand-SubNav-color-link-bgColor: #e4ebe6;
--fontStack-sansSerif: "Mona Sans VF", -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
--brand-Icon-color-coral: #e13f1b;
--brand-control-checkbox-fg-checked-disabled: #fff;
--brand-control-radio-border-disabled: #b6bfb8;
--brand-breakpoint-large: 63.25rem;
--brand-Tabs-list-borderWidth-active: max(1px, .0625rem);
--brand-IDE-playPauseControl-rest: #d2d9d4;
--brand-Tabs-item-underline-rest: #000;
--brand-breakpoint-xsmall: 20rem;
--text-codeBlock-size: .8125rem;
--brand-Prose-blockquote-spacing: 1.5rem;
--brand-control-medium-lineBoxHeight: 1rem;
--brand-text-weight-normal: 400;
--brand-VideoPlayer-closedCaption-text-padding: .625rem;
--brand-Testimonial-quoteMarkColor-pink-blue-end: #0377ff;
--brand-text-letterSpacing-100: .21px;
--brand-body-fontFamily: "Mona Sans", "MonaSansFallback", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
--brand-Icon-color-lemon: #a98906;
--brand-Eyebrowbanner-fgColor-green-blue-end: #0377ff;
--fgColor-success: #1a7f37;
--brand-Grid-spacing-margin: 1rem;
--border-severe-muted: .0625rem solid #fb8f4466;
--brand-videoPlayer-title-fgColor: #f2f5f3;
--brand-Eyebrowbanner-icon-background-teal: #daf9f5;
--brand-text-size-700: 2.5rem;
--brand-animation-variant-scaleInRight-distance: -1.25rem;
--brand-videoPlayer-playButton-bgColor-rest: #0377ff;
--brand-Testimonial-quote-color-default: #000;
--text-body-shorthand-small: 400 .75rem / 1.625 "Mona Sans VF", -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
--color-prettylights-syntax-meta-diff-range: #8250df;
--brand-PricingOptions-item-bgColor-solid: #f2f5f3;
--brand-Icon-background-coral: #fff0eb;
--color-ansi-yellow-bright: #633c01;
--brand-Testimonial-quoteMarkColor-indigo: #4956e5;
--brand-box-spacing-normal: 1.5rem;
--bgColor-open-muted: #dafbe1;
--brand-Eyebrowbanner-fgColor-purple: #8534f3;
--bgColor-white: #fff;
--brand-borderRadius-small: .25rem;
--brand-CTABanner-shadow-color-start: #08872b;
--brand-Eyebrowbanner-fgColor-purple-red-end: #cf2230;
--brand-color-text-emphasized: #08872b;
--text-title-size-large: 2rem;
--brand-River-label-margin: 1rem;
--bgColor-open-emphasis: #1f883d;
--brand-Accordion-toggle-color-end: #0d6731;
--brand-stack-gap-spacious: 3rem;
--color-prettylights-syntax-variable: #953800;
}Drop-in prompt
Build a landing page in the visual style of Primer Style.
Reference design system (extracted from the live site):
- Palette: #0716f6, #0e2c9c, #94b7ee, #6eb184, #a4c6ac
- Typefaces: Mona Sans, -apple-system, Mona Sans VF
- 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/primer-style