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Style Catalog/Blueprint

Blueprint

工程蓝图

D
50/100Poor

Engineering blueprint and technical drawing style with white lines on blue, grid coordinates, annotation lines, and dimension markers. Ideal for architecture, engineering, tech, and education.

blueprintblueprint uiengineering drawingtechnical drawingcyanotypeschematicdraftinggrid coordinatesannotation linesarchitecture website
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Best For

blueprint / blueprint ui / engineering drawing

Primary Move

Use blueprint blue bg-[#1e3a5f] for backgrounds paired with grid line background effects

Watch Out

Do not use warm-toned backgrounds

Showcase Entry

Live preview of the showcase page. Click to explore the full experience.

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Color Palette

Primary

#ffffff

Secondary

#1e3a5f

Accent 1

#4a90d9

Accent 2

#ff6b35

Accent 3

#a0c4e8

Accent 4

#b071e4

AI ImplementationComponent PreviewReadinessFAQExportsRatings & Feedback

AI Implementation

Copy the Hard Prompt first, then use the spec when needed

Use the Hard Prompt by default to generate UI. Use the Design Spec to understand, modify, and review the style. Use the Creative Brief for early exploration.

Hard Prompt

Use this by default: copy it, append the concrete requirement, and let AI generate consistent production UI.

When to use

  • -When AI should generate UI directly
  • -When repeated outputs must stay consistent
  • -When style drift is the main risk

How to use

  • -Copy the full prompt
  • -Append the concrete requirement
  • -Review against forbidden rules and UI states
STYLEKIT_STYLE_REFERENCE
style_name: Blueprint
style_slug: blueprint
style_source: /styles/blueprint

# Hard Prompt

## When To Use
Use this when you want AI to generate code with strict style consistency. It is the safest default for production UI.

## How To Use
- Copy the full prompt into ChatGPT, Claude, Cursor, or another coding assistant.
- Append the concrete product/page requirement after the prompt.
- After generation, check the forbidden rules and interaction states before accepting the output.

Strictly follow the style rules below and maintain consistency. No style drift allowed.

## Requirements

- Prioritize style consistency first, then creative extension.
- When conflicts arise, treat prohibitions as the highest priority.
- Self-check before output: verify colors, typography, spacing, and interactions still match this style.

## Style Rules

STYLE: Blueprint
TYPE: Engineering technical drawing interface

MUST USE:
- Blueprint blue background: bg-[#1e3a5f]
- White lines and text: text-white, border-white/30
- Monospace font: font-mono for all text
- uppercase tracking-widest for labels
- Grid background pattern for coordinates
- Orange annotations: text-[#ff6b35] for highlights
- Light blue secondary: text-[#a0c4e8]
- Corner markers on cards (L-shaped borders)
- Dashed lines for auxiliary elements: border-dashed

MUST AVOID:
- Warm-toned backgrounds
- Rounded/soft design elements
- Gradient fills
- Glow or neon effects
- Serif or handwritten fonts
- Large colored blocks
- Large border-radius (rounded-2xl+)

COLOR RULES:
- White line: #ffffff (primary elements)
- Blueprint blue: #1e3a5f (background)
- Light blue: #4a90d9, #a0c4e8 (secondary elements)
- Annotation orange: #ff6b35 (highlights, callouts)

SPECIAL EFFECTS:
- Grid background pattern (20px spacing)
- Corner bracket markers on containers
- Dimension lines with end markers
- Coordinate labels as decorative elements

Animation & Interaction Rules:
- CAD Precision: Interaction effects must be crisp and precise, prefer duration-100 (adjustable within 75-150ms range), avoiding sluggish ease-in-out.
- Crosshair Reveals: On hovering interactive elements, use before/after or corner markers to reveal crosshair and alignment hints.
- Blueprint Highlight: Default blue-white palette; active or confirm states can briefly light up engineering orange #ff6b35, but it must not dominate the main visual for long.
- Grid Interaction: Container hover can slightly increase grid line visibility (white lines to light blue lines), serving only as measurement feedback, not emotional animation.

## Absolute Bans (Match and Refuse)

If any of the following patterns appear, it is a style violation — rewrite without exception.

- use warm-toned backgrounds
- use rounded, soft design elements
- use gradient color fills (lines and fills should be solid colors)
- use glow effects or neon shadows
- use serif fonts or handwritten fonts
- use large areas of colored blocks
- use elements with overly large rounded corners rounded-2xl rounded-3xl

## Self-Check (Verify Before Shipping)

If any item fails, the style has drifted — fix before shipping.

- [ ] No purple-to-blue gradients
- [ ] No overused fonts (Inter, Roboto, Geist, Fraunces, Plus Jakarta Sans)
- [ ] No nested cards (cards inside cards)
- [ ] No gray text on colored backgrounds
- [ ] Body text contrast meets WCAG AA (>= 4.5:1)
- [ ] No bounce or elastic easing curves
- [ ] Animations have a prefers-reduced-motion fallback
- [ ] Body text line length capped at 65-75 characters
- [ ] No side-stripe accent borders (border-left/right > 1px)
- [ ] No gradient text (background-clip: text)
- [ ] No glassmorphism used as the default surface treatment
- [ ] No tiny uppercase tracked eyebrow labels above every section heading
- [ ] do not use warm-toned backgrounds
- [ ] do not use rounded, soft design elements
- [ ] do not use gradient color fills (lines and fills should be solid colors)
- [ ] do not use glow effects or neon shadows
- [ ] do not use serif fonts or handwritten fonts

Component Templates

Component Preview

按钮

蓝图风格的技术按钮

// Blueprint Primary (Snappy) // Blueprint Filled (CAD Confirm) // Annotation Variant

Frontend Readiness

Dark Mode, States, Motion, and Accessibility

This layer tracks whether the style is ready for real websites: theme modes, state feedback, keyboard access, and performance constraints.

Overall

51%

Fallback

Dark Mode

0%

Missing

UI States

79%

Partial

Motion

70%

Partial

A11y

70%

Partial

Performance

35%

Fallback

Key State Coverage

light
HoverFocus VisibleDisabledLoadingEmptyErrorSuccess

Button

Default / Hover / Focus Visible / Active / Disabled

Input

Default / Hover / Focus Visible / Disabled / Error

Card

Default / Hover / Focus Visible / Loading / Skeleton

Form

Default / Focus Visible / Disabled / Loading / Error

Implementation Notes

  • No curated dark-mode contract exists yet.
  • Check contrast in both light and dark modes.
  • Check heavy shadows, blur, large media, and scroll-linked effects manually.
  • No style-specific performance cost profile has been curated yet.

FAQ

Blueprint — Frequently Asked Questions

01What is the Blueprint design style?
Engineering blueprint and technical drawing style with white lines on blue, grid coordinates, annotation lines, and dimension markers. Ideal for architecture, engineering, tech, and education. Its core principle: Blueprint draws design inspiration from traditional cyanotype blueprint printing and modern engineering drafting.
02What colors does Blueprint use?
Blueprint uses #ffffff as its primary color and #1e3a5f as its secondary color, with accent colors #4a90d9, #ff6b35, #a0c4e8, #b071e4. Every hex value can be copied from the palette on this page.
03How do I apply Blueprint correctly?
Key practices: Use blueprint blue bg-[#1e3a5f] for backgrounds paired with grid line background effects. Use white text-white or light blue text-[#a0c4e8] for text and lines. Use monospace font font-mono to enhance the technical drafting feel.
04What are common mistakes with Blueprint?
Avoid: Do not use warm-toned backgrounds. Do not use rounded, soft design elements. Do not use gradient color fills (lines and fills should be solid colors).
05How do I prompt AI to generate Blueprint UI?
Copy the ready-made AI prompt on this page — it bundles the design tokens and component rules — and paste it into ChatGPT, Claude, Cursor, or v0. Effective prompts include the keywords: blueprint, blueprint ui, engineering drawing, technical drawing.
Global Styles

Global CSS

css
/* Blueprint Global Styles */
@layer base {
  body {
    @apply bg-[#1e3a5f] text-white antialiased;
    font-family: 'Courier New', Courier, monospace;
    background-image:
      linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 20px 20px;
  }

  ::selection {
    @apply bg-[#4a90d9] text-white;
  }
}

/* Blueprint grid (denser) */
.blueprint-grid {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100px 100px, 100px 100px, 20px 20px, 20px 20px;
}

/* Dimension line */
.blueprint-dimension {
  border-top: 1px solid rgba(255, 107, 53, 0.6);
  position: relative;
}
.blueprint-dimension::before,
.blueprint-dimension::after {
  content: '';
  position: absolute;
  top: -4px;
  width: 1px;
  height: 9px;
  background: rgba(255, 107, 53, 0.6);
}
.blueprint-dimension::before { left: 0; }
.blueprint-dimension::after { right: 0; }
/* Blueprint Design Tokens */
:root {
  --blueprint-primary: #ffffff;
  --blueprint-secondary: #1e3a5f;
  --blueprint-accent: #4a90d9;
  --blueprint-glow: rgba(255, 255, 255, 0.3);
}

@keyframes blueprint-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes blueprint-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.blueprint-frosted {
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  background: rgba(255, 255, 255, 0.08);
}

.blueprint-accent-corner {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 2rem), calc(100% - 2rem) 100%, 0 100%);
}

.blueprint-animate-in {
  animation: blueprint-fade-in 0.5s ease-out both;
}

IDE Integration

IDE Configuration Export

Download configuration files for AI coding assistants to generate code in this style.

Style Pack

Export Style Pack

Get complete machine-readable style assets including design tokens, Tailwind presets, CSS variables, and shadcn/ui themes.

Metadata

Style metadata including version information

Design Tokens

Compatible with Figma / Style Dictionary / Tokens Studio

Tailwind Preset

Tailwind CSS theme preset, import directly in config

Global CSS

CSS variables and base styles

shadcn Theme

shadcn/ui theme configuration

CSS Variables

Pure CSS variables, works with any project

SKILL.md

Loadable skill pack for Cursor / Claude Code / VS Code

Design Philosophy

Blueprint draws design inspiration from traditional cyanotype blueprint printing and modern engineering drafting. White lines on a blue background are its most iconic visual feature, while grid systems, annotation lines, and dimension markers give the interface a precise, professional, and trustworthy character.

Accessibility

Accessibility Score

WCAG 2.1 compliance analysis based on color contrast and typography readability.

50

Overall Score

Grade: D - Poor

Contrast Ratios

Score: 39/100Average Ratio: 4.81:1
AA FailAAA Fail
ContextColorsRatioAAAAA
Text on background
/#ffffff / #1e3a5f
11.5:1
Secondary text on background
/#a0c4e8 / #1e3a5f
6.33:1
Text on secondary background
/#ffffff / #1e3a5f
11.5:1
Secondary text on secondary
/#a0c4e8 / #1e3a5f
6.33:1
Text on accent 1
/#ffffff / #ffffff
1:1
Alt text on accent 1
/#a0c4e8 / #ffffff
1.82:1
Text on accent 2
/#ffffff / #4a90d9
3.34:1
Alt text on accent 2
/#a0c4e8 / #4a90d9
1.84:1
Text on accent 3
/#ffffff / #ff6b35
2.84:1
Alt text on accent 3
/#a0c4e8 / #ff6b35
1.56:1

Readability

Score

75/100

Font Size

text-sm md:text-base

Font Weight

font-mono tracking-wider uppercase

Line Height

default

Scoring is based on WCAG 2.1 standards. AA requires 4.5:1 contrast for normal text, 3:1 for large text; AAA requires 7:1 for normal text, 4.5:1 for large text.

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