MongoDB

Overview

MongoDB carries a strong dual-mode visual identity — dark deep-teal hero bands with the unmistakable bright MongoDB green ({colors.brand-green}) CTA pill paired with stark white documentation and pricing surfaces. The homepage opens with "One data platform. Unlimited AI potential." headline over a deep navy hero, the green pill sitting at the visual center as the primary CTA. Lower on the page, embedded code mockup cards (terminal-aesthetic) sit on the dark hero band, breaking out into white feature cards below. The pricing page renders a 3-tier comparison (Free / Flex / Dedicated) with a featured tier highlighted in soft mint background and bright green border. The MongoDB University page presents a course catalog grid where each tile carries a colored category tag (orange, purple, green, teal) — these are MongoDB's category-encoding accent colors and are the only place outside the brand green where saturated color appears.

The system uses Euclid Circular A as its display face. The face is contemporary geometric — confident but not overly playful — and pairs naturally with both the developer-tool aesthetic of the database product and the educational positioning of the learning surfaces. Cards use `{rounded.lg}` (12px) corners; buttons use `{rounded.full}` pills universally. The brand-teal palette ({colors.brand-teal-deep}) anchors hero bands, footer, code mockups, and the dark CTA banners.

**Key Characteristics:**

• Deep navy/teal hero bands ({colors.brand-teal-deep}) with bright MongoDB green ({colors.brand-green}) CTA pills
• Stark white pricing/documentation surfaces with colored category tags for course tiles (purple, orange, green, teal)
• Euclid Circular A across every UI surface
• Pill-shaped buttons ({rounded.full}) and 12px-rounded cards
• 3-tier pricing comparison (Free / Flex / Dedicated) with featured-mint highlight tier
• Code mockup cards with terminal-aesthetic dark canvas

Colors

> Source pages: mongodb.com/ (homepage), /products/platform/atlas-database (Atlas product), /products/self-managed/community-edition, learn.mongodb.com/ (MongoDB University), /solutions/use-cases/artificial-intelligence (AI), /pricing (3-tier comparison). Token coverage was identical across all six pages.

Brand & Accent

• **MongoDB Green** ({colors.brand-green}): The brand's most recognizable signal — bright pill-CTA color
• **Green Dark** ({colors.brand-green-dark}): Inline link color, secondary green
• **Green Mid** ({colors.brand-green-mid}): Mid-spectrum green for atmospheric tints
• **Green Soft** ({colors.brand-green-soft}): Pale-mint background tint for success badges and featured pricing tier
• **Brand Teal Deep** ({colors.brand-teal-deep}): Deep navy-teal for hero bands, footer
• **Brand Teal** ({colors.brand-teal}): Mid-spectrum teal
• **Brand Teal Mid** ({colors.brand-teal-mid}): Lighter teal for hero platform cards

Category Accent (Course Tags)

• **Accent Purple** ({colors.accent-purple}): Course tag for "Database & Security"
• **Accent Orange** ({colors.accent-orange}): Course tag for "Search"
• **Accent Pink** ({colors.accent-pink}): Course tag variant
• **Accent Blue** ({colors.accent-blue}): Course tag variant for atlas/cloud topics

Surface

• **Canvas White** ({colors.canvas}): Page background and primary card surface
• **Canvas Dark** ({colors.canvas-dark}): Code-block backgrounds, dark mockup canvas
• **Surface** ({colors.surface}): Subtle section backgrounds, search-pill rest
• **Surface Soft** ({colors.surface-soft}): Quieter section divisions
• **Surface Feature** ({colors.surface-feature}): Pale mint background for featured pricing tier
• **Hairline** ({colors.hairline}): 1px borders and primary dividers
• **Hairline Soft** ({colors.hairline-soft}): Quieter dividers
• **Hairline Strong** ({colors.hairline-strong}): Stronger 1px border for inputs
• **Hairline Dark** ({colors.hairline-dark}): Border on dark surfaces

Text

• **Ink** ({colors.ink}): Primary headlines and body text (deep navy-teal)
• **Charcoal** ({colors.charcoal}): Body emphasis
• **Slate** ({colors.slate}): Secondary text
• **Steel** ({colors.steel}): Tertiary text, captions
• **Stone** ({colors.stone}): Muted labels
• **Muted** ({colors.muted}): Disabled, placeholders
• **On Dark** ({colors.on-dark}): White text on dark surfaces
• **On Dark Muted** ({colors.on-dark-muted}): Reduced-opacity white

Semantic

• **Warning Background** ({colors.semantic-warning-bg}): Pale yellow callout bg
• **Warning Text** ({colors.semantic-warning-text}): Warning state copy color

Typography

Font Family

**Euclid Circular A** (primary): MongoDB's geometric sans-serif. Fallbacks: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif.

**Source Code Pro** (code): Monospace for code mockups. Fallbacks: 'SF Mono', Menlo, Consolas, monospace.

Hierarchy

| Token | Size | Weight | Line Height | Letter Spacing | Use |

|---|---|---|---|---|---|

| `{typography.hero-display}` | 72px | 500 | 1.10 | -1.5px | Hero ("One data platform") |

| `{typography.display-lg}` | 56px | 500 | 1.15 | -1px | Major section openers |

| `{typography.heading-1}` | 48px | 500 | 1.20 | -0.5px | Page-level headlines |

| `{typography.heading-2}` | 36px | 500 | 1.25 | -0.5px | Subsection headlines |

| `{typography.heading-3}` | 28px | 500 | 1.30 | 0 | Card titles |

| `{typography.heading-4}` | 22px | 500 | 1.35 | 0 | Feature tile titles |

| `{typography.heading-5}` | 18px | 600 | 1.40 | 0 | Smaller card titles, FAQ questions |

| `{typography.subtitle}` | 18px | 400 | 1.50 | 0 | Hero subtitle, lead body |

| `{typography.body-md}` | 16px | 400 | 1.55 | 0 | Primary body text |

| `{typography.body-sm}` | 14px | 400 | 1.50 | 0 | Secondary body, table cells |

| `{typography.body-sm-medium}` | 14px | 500 | 1.50 | 0 | Active sidebar, button labels |

| `{typography.caption-bold}` | 13px | 600 | 1.40 | 0 | Badge labels |

| `{typography.micro-uppercase}` | 11px | 600 | 1.40 | 1px | Section eyebrows, course category tags |

| `{typography.button-md}` | 14px | 600 | 1.30 | 0 | Pill button labels |

| `{typography.code-md}` | 14px | 400 | 1.55 | 0 | Code mockups |

Principles

• Tight hero leading (1.10) on 72px display
• Negative letter-spacing on display sizes (-1.5px to -0.5px)
• 600 weight reserved for buttons and small emphasis (FAQ headings, badges)
• Generous body leading (1.55) for technical documentation readability

Layout

Spacing System

• **Base unit**: 4px (8px primary increment)
• **Tokens**: `{spacing.xxs}` (4px) through `{spacing.hero}` (120px)
• **Section rhythm**: Marketing pages use `{spacing.section-lg}` (96px); pricing tightens to `{spacing.section}` (64px)

Grid & Container

• 1280px max-width with 32px gutters
• Pricing: 3-tier card row, dense feature comparison table below
• Learn catalog: 3-up course tile grid, 4-up certification grid
• AI use cases: 2-column hero with atmospheric illustration

Whitespace Philosophy

Marketing surfaces give content generous breathing room — `{spacing.hero}` (120px) hero padding for deep teal bands. Pricing/learn surfaces tighten dramatically.

Elevation & Depth

| Level | Treatment | Use |

|---|---|---|

| 0 (flat) | No shadow; `{colors.hairline}` border | Default cards, table rows |

| 1 (subtle) | `rgba(0, 30, 43, 0.04) 0px 1px 2px 0px` | Hover-elevated tiles |

| 2 (card) | `rgba(0, 30, 43, 0.08) 0px 4px 12px 0px` | Feature cards |

| 3 (mockup) | `rgba(0, 30, 43, 0.12) 0px 12px 24px -4px` | Code mockup over hero |

| 4 (modal) | `rgba(0, 30, 43, 0.16) 0px 16px 48px -8px` | Modals, dropdowns |

Decorative Depth

• Dark teal hero bands carry atmospheric gradient depth
• Code mockup cards on hero use canvas-dark surface with terminal aesthetic
• Pale-mint pricing-feature tier uses brand-tinted shadow

Shapes

Border Radius Scale

| Token | Value | Use |

|---|---|---|

| `{rounded.xs}` | 4px | Course category tags |

| `{rounded.sm}` | 6px | Type badges, code chips |

| `{rounded.md}` | 8px | Inputs, search-pill, code blocks |

| `{rounded.lg}` | 12px | Cards, pricing tiers, course tiles |

| `{rounded.xl}` | 16px | Larger feature panels |

| `{rounded.xxl}` | 24px | Featured product showcases |

| `{rounded.full}` | 9999px | All buttons, status badges |

Photography Geometry

• Hero illustrations sit on full-bleed dark backgrounds
• Course tile thumbnails use `{rounded.lg}` corners
• Customer logos wall: wordmarks at consistent 60–80px height

Components

> Per the no-hover policy, hover states are NOT documented. Default and pressed/active states only.

Buttons

**`button-primary`** — Bright MongoDB green pill primary CTA, the dominant action.

• Background `{colors.brand-green}`, text `{colors.on-primary}` (deep navy), typography `{typography.button-md}`, padding `10px 22px`, rounded `{rounded.full}`.
• Pressed state `button-primary-pressed` deepens to `{colors.primary-pressed}`.
• Disabled state `button-primary-disabled` uses `{colors.hairline}` background.

**`button-secondary`** — Outlined pill for secondary actions.

• Background transparent, text `{colors.ink}`, border `1px solid {colors.hairline-strong}`, typography `{typography.button-md}`, padding `10px 22px`, rounded `{rounded.full}`.

**`button-on-dark`** — Bright green pill on dark hero bands.

• Background `{colors.brand-green}`, text `{colors.on-primary}`, typography `{typography.button-md}`, padding `10px 22px`, rounded `{rounded.full}`.

**`button-secondary-on-dark`** — Outlined pill on dark backgrounds.

• Background transparent, text `{colors.on-dark}`, border `1px solid {colors.hairline-dark}`, typography `{typography.button-md}`, padding `10px 22px`, rounded `{rounded.full}`.

**`button-ghost`** — Quieter rectangular ghost button.

• Background transparent, text `{colors.ink}`, typography `{typography.button-md}`, padding `8px 12px`, rounded `{rounded.md}`.

**`button-link`** — Inline green text link.

• Background transparent, text `{colors.brand-green-dark}`, typography `{typography.body-sm-medium}`, padding `0`.

Cards & Containers

**`card-base`** — Standard content card.

• Background `{colors.canvas}`, rounded `{rounded.lg}`, padding `{spacing.xl}`, border `1px solid {colors.hairline}`.

**`card-feature`** — Feature card with larger padding.

• Background `{colors.canvas}`, rounded `{rounded.lg}`, padding `{spacing.xxl}`, border `1px solid {colors.hairline}`.

**`card-product-deploy`** — Product deployment card ("MongoDB Atlas / Community").

• Background `{colors.canvas}`, rounded `{rounded.lg}`, padding `{spacing.xxl}`, border `1px solid {colors.hairline}`.

**`card-feature-dark`** — Dark teal feature card on hero band.

• Background `{colors.brand-teal-deep}`, text `{colors.on-dark}`, rounded `{rounded.lg}`, padding `{spacing.xxl}`.

**`card-course`** — MongoDB University course tile.

• Background `{colors.canvas}`, rounded `{rounded.lg}`, padding `{spacing.xl}`, border `1px solid {colors.hairline}`.
• Top: colored category tag. Below: title `{typography.heading-5}`, description `{typography.body-sm}`, "Get Started →" link.

**`card-cert`** — Certification card.

• Background `{colors.canvas}`, rounded `{rounded.lg}`, padding `{spacing.xl}`, border `1px solid {colors.hairline}`.

**`pricing-card`** — Standard pricing tier card.

• Background `{colors.canvas}`, rounded `{rounded.lg}`, padding `{spacing.xxl}`, border `1px solid {colors.hairline}`.

**`pricing-card-featured`** — Featured pricing tier (Flex tier, mint background + green border).

• Background `{colors.surface-feature}`, rounded `{rounded.lg}`, padding `{spacing.xxl}`, border `2px solid {colors.brand-green}`.

Inputs & Forms

**`text-input`** — Standard text field.

• Background `{colors.canvas}`, text `{colors.ink}`, border `1px solid {colors.hairline-strong}`, rounded `{rounded.md}`, padding `{spacing.sm} {spacing.md}`, height 44px.

**`text-input-focused`** — Activated state.

• Border switches to `2px solid {colors.brand-green-dark}`.

**`search-pill`** — Standard 44px search bar.

• Background `{colors.surface}`, text `{colors.steel}`, typography `{typography.body-md}`, rounded `{rounded.md}`, height 44px, border `1px solid {colors.hairline-strong}`.

**`search-pill-large`** — Large 56px search bar (top of MongoDB University catalog).

• Background `{colors.canvas}`, text `{colors.steel}`, typography `{typography.body-md}`, rounded `{rounded.md}`, height 56px, border `1px solid {colors.hairline-strong}`.

Tabs

**`pill-tab`** + **`pill-tab-active`** — Pill-style tab nav (top of pricing: "MongoDB Atlas / Enterprise Advanced").

• Inactive: text `{colors.steel}`, border `1px solid {colors.hairline}`, padding `{spacing.xs} {spacing.md}`, rounded `{rounded.full}`.
• Active: background `{colors.ink}`, text `{colors.on-dark}`.

**`segmented-tab`** + **`segmented-tab-active`** — Underline-style tab navigation.

• Inactive: text `{colors.steel}`, no border. Active: text `{colors.brand-green-dark}`, 2px bottom border in `{colors.brand-green-dark}`.

Badges & Status

**`badge-green`** — Bright green badge for new product highlights.

• Background `{colors.brand-green}`, text `{colors.on-primary}`, typography `{typography.caption-bold}`, rounded `{rounded.sm}`, padding `2px 8px`.

**`badge-green-soft`** — Pale-mint pill for success/free indicators.

• Background `{colors.brand-green-soft}`, text `{colors.brand-green-dark}`, typography `{typography.caption-bold}`, rounded `{rounded.full}`, padding `4px 10px`.

**`badge-purple`** — Purple course category tag.

• Background `{colors.accent-purple}`, text `{colors.on-dark}`, typography `{typography.caption-bold}`, rounded `{rounded.sm}`, padding `2px 8px`.

**`badge-orange`** — Orange course category tag.

• Background `{colors.accent-orange}`, text `{colors.on-dark}`, typography `{typography.caption-bold}`, rounded `{rounded.sm}`, padding `2px 8px`.

**`badge-popular`** — "Most Popular" tier indicator (dark teal pill with green text).

• Background `{colors.brand-teal-deep}`, text `{colors.brand-green}`, typography `{typography.caption-bold}`, rounded `{rounded.full}`, padding `4px 10px`.

**`promo-banner`** — Dark teal sticky promo strip ABOVE the top nav.

• Background `{colors.brand-teal-deep}`, text `{colors.on-dark}`, typography `{typography.body-sm-medium}`, padding `{spacing.sm} {spacing.md}`.

Code

**`code-block`** — Code container.

• Background `{colors.canvas-dark}`, text `{colors.on-dark}`, typography `{typography.code-md}`, rounded `{rounded.md}`, padding `{spacing.md}`.

**`code-mockup-card`** — Embedded code mockup on hero band.

• Background `{colors.canvas-dark}`, text `{colors.on-dark}`, rounded `{rounded.lg}`, padding `{spacing.lg}`. Carries terminal-aesthetic code snippet.

Tables

**`comparison-table`** — Pricing feature comparison table.

• Background `{colors.canvas}`, text `{colors.ink}`, typography `{typography.body-sm}`, rounded `{rounded.md}`, border `1px solid {colors.hairline}`.

**`comparison-row`** — Individual feature row.

• Background `{colors.canvas}`, text `{colors.ink}`, padding `{spacing.md} {spacing.lg}`, bottom border `1px solid {colors.hairline-soft}`.

Documentation Components

**`service-tile`** — Tile in "Customize your deployment" 6-up grid.

• Background `{colors.canvas}`, rounded `{rounded.lg}`, padding `{spacing.xl}`, border `1px solid {colors.hairline}`.

**`why-card`** — "Loved by builders" feature card.

• Background `{colors.surface}`, rounded `{rounded.lg}`, padding `{spacing.xl}`.

**`customer-testimonial-card`** — Customer quote card.

• Background `{colors.canvas}`, rounded `{rounded.lg}`, padding `{spacing.xxl}`, border `1px solid {colors.hairline}`.

**`logo-wall-item`** — Customer logo wordmark cell.

• Background transparent, text `{colors.steel}`, typography `{typography.body-md-medium}`, padding `{spacing.lg}`.

**`faq-accordion-item`** — FAQ panel.

• Background `{colors.canvas}`, rounded `{rounded.md}`, padding `{spacing.xl}`, bottom border `1px solid {colors.hairline}`.

Navigation

**Top Navigation (Marketing)** — Sticky white bar.

• Background `{colors.canvas}`, height ~64px, bottom border `1px solid {colors.hairline}`.
• Left: MongoDB leaf logo + "Solutions / Resources / Company / Pricing" links.
• Right: "Sign In" link + bright-green pill "Try Free" CTA.

Signature Components

**`hero-band-dark`** — Deep teal hero band with embedded code mockup.

• Background `{colors.brand-teal-deep}`, text `{colors.on-dark}`, padding `{spacing.hero}`.
• Layout: centered headline `{typography.hero-display}`, subtitle, button row, `code-mockup-card` below.

**`hero-platform-card`** — Lighter-teal platform showcase card on dark hero.

• Background `{colors.brand-teal-mid}`, text `{colors.on-dark}`, rounded `{rounded.xl}`, padding `{spacing.xxl}`.

**`cta-banner-dark`** — Dark CTA banner at the bottom of feature pages.

• Background `{colors.brand-teal-deep}`, text `{colors.on-dark}`, rounded `{rounded.lg}`, padding `{spacing.section}`.

**`footer-region`** — Dark teal multi-column footer.

• Background `{colors.brand-teal-deep}`, padding `{spacing.section} {spacing.xxl}`.
• 6-column link grid.
• Section headings in `{typography.body-sm-medium}` `{colors.on-dark}`.

**`footer-link`** — Individual footer link.

• Background transparent, text `{colors.on-dark-muted}`, typography `{typography.body-sm}`, padding `{spacing.xxs} 0`.

Do's and Don'ts

Do

• Use `{colors.brand-green}` (bright MongoDB green) for primary CTAs everywhere
• Pair dark-teal hero bands with bright green CTA pills
• Apply `{rounded.full}` to every button, every status badge
• Apply `{rounded.lg}` (12px) to cards consistently
• Use category accent colors (purple, orange, green, teal) ONLY for course tags
• Maintain Euclid Circular A across every UI surface
• Use code mockup cards with terminal-aesthetic content for product showcases

Don't

• Don't use the bright green for body text or large surfaces
• Don't introduce additional accent colors beyond the brand green and category-encoding palette
• Don't soften corners on buttons; the pill is a brand signature
• Don't replace deep teal hero bands with white hero bands
• Don't apply heavy shadows on flat documentation cards; reserve elevation for code mockups
• Don't use Source Code Pro for prose

Responsive Behavior

Breakpoints

| Name | Width | Key Changes |

|---|---|---|

| Mobile (small) | < 480px | Single column. Hero 36px. Pricing 1-up. Course catalog 1-up. |

| Mobile (large) | 480 – 767px | Course tiles 2-up. Hero 48px. |

| Tablet | 768 – 1023px | 2-column feature grids. Hero 56px. |

| Desktop | 1024 – 1279px | 3-tier pricing card row. 3-up course catalog. Hero 64px. |

| Wide Desktop | ≥ 1280px | Full 72px hero presentation. |

Touch Targets

• Pill buttons render at 40–44px effective height
• Form inputs render at 44px height
• Search pill (large) renders at 56px
• Pill tabs ~32px → 44px on mobile

Collapsing Strategy

• **Promo banner** stays full-width; truncates at < 480px
• **Top nav** below 1024px collapses to hamburger
• **Hero band**: code mockup card moves below text on mobile
• **Pricing tiers**: 3-column → 2-column tablet → 1-column mobile
• **Course catalog**: 3-up → 2-up tablet → 1-up mobile
• **Hero typography**: 72px → 56px → 48px → 36px
• **Footer**: 6-column desktop → 3-column tablet → accordion mobile

Image Behavior

• Atmospheric AI imagery uses 16:9 ratio with full-bleed scaling
• Code mockup card content remains readable across breakpoints
• Customer logo wall: wordmarks at consistent 60–80px height

Iteration Guide

1. Focus on ONE component at a time

2. Reference component names and tokens directly

3. Run `npx @google/design.md lint DESIGN.md` after edits

4. Add new variants as separate `components:` entries

5. Default to `{typography.body-md}` for body

6. Keep `{colors.brand-green}` as the primary CTA across all surfaces

7. Pill-shaped buttons (`{rounded.full}`) always

8. Dark-teal hero bands frame primary CTAs

Known Gaps

• Specific dark-mode token values for canvas/surface beyond hero bands not surfaced
• Animation/transition timings not extracted; recommend 150–200ms ease
• Form validation success state not explicitly captured
• Course-tile category color mappings are observation-based