本文へ移動
cccskills
無料GitHub で公開

color-palette-extractor

Extract color palettes from images, websites, or designs. Identifies dominant colors, generates complementary schemes, and exports in multiple formats (HEX, RGB, HSL, Tailwind, CSS variables). Use when users need color schemes from images, brand colors, or design system palettes.

インストール方法を見る

含まれるファイル(1)

  • SKILL.md9.2 KB

SKILL.md(原文)

インストールする前に、エージェントに与えられる指示の中身を確認できます。

Color Palette Extractor

Extract and generate color palettes from images, websites, and designs.

Instructions

When a user needs to extract colors from a source:

  1. Identify Source Type:

    • Image file (PNG, JPG, SVG)
    • Website URL
    • Screenshot
    • Design mockup
    • Existing color code to build palette from
  2. Extract Colors:

    From Image:

    • Analyze pixel data
    • Identify dominant colors
    • Group similar shades
    • Calculate color frequency
    • Sort by prominence

    From Website:

    • Fetch and parse CSS
    • Extract color values from stylesheets
    • Identify brand colors
    • Find accent colors
    • Detect text/background colors

    Color Clustering:

    • Use K-means clustering
    • Group similar colors
    • Typically extract 5-10 dominant colors
    • Ignore near-white/near-black unless significant
  3. Generate Color Palette:

    Primary Palette (5-10 colors):

    • Most dominant color
    • 2-3 supporting colors
    • 1-2 accent colors
    • Background color
    • Text color

    Extended Palette:

    • Light and dark variations
    • Tints (add white)
    • Shades (add black)
    • Tones (add gray)
    • Generate 50, 100, 200...900 scales
  4. Color Harmony Analysis:

    Generate complementary schemes:

    • Monochromatic: Variations of single hue
    • Analogous: Adjacent colors on wheel
    • Complementary: Opposite colors
    • Triadic: Three evenly spaced colors
    • Split-complementary: Base + two adjacent to complement
    • Tetradic: Four colors (two complementary pairs)
  5. Format Output:

    🎨 COLOR PALETTE EXTRACTOR
    
    Source: [Image/Website URL]
    
    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    🎯 PRIMARY PALETTE
    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    
    1. Primary Color
       HEX: #3B82F6
       RGB: rgb(59, 130, 246)
       HSL: hsl(217, 91%, 60%)
       Usage: Main brand color, primary buttons, links
       Prominence: 32%
    
    2. Secondary Color
       HEX: #8B5CF6
       RGB: rgb(139, 92, 246)
       HSL: hsl(258, 90%, 66%)
       Usage: Accent elements, hover states
       Prominence: 18%
    
    3. Background
       HEX: #F8FAFC
       RGB: rgb(248, 250, 252)
       HSL: hsl(210, 40%, 98%)
       Usage: Page background, cards
       Prominence: 25%
    
    4. Text Primary
       HEX: #1E293B
       RGB: rgb(30, 41, 59)
       HSL: hsl(217, 33%, 17%)
       Usage: Body text, headings
       Prominence: 15%
    
    5. Accent
       HEX: #10B981
       RGB: rgb(16, 185, 129)
       HSL: hsl(158, 84%, 39%)
       Usage: Success states, CTAs
       Prominence: 10%
    
    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    🌈 COLOR SCALE (Tailwind-style)
    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    
    Primary:
      50:  #EFF6FF  [lightest]
      100: #DBEAFE
      200: #BFDBFE
      300: #93C5FD
      400: #60A5FA
      500: #3B82F6  [base]
      600: #2563EB
      700: #1D4ED8
      800: #1E40AF
      900: #1E3A8A  [darkest]
      950: #172554
    
    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    🎭 COLOR HARMONY SCHEMES
    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    
    Complementary:
      Base: #3B82F6 (blue)
      Complement: #F6823B (orange)
    
    Analogous:
      #3B82F6 (blue)
      #3BF6D9 (cyan)
      #823BF6 (purple)
    
    Triadic:
      #3B82F6 (blue)
      #F6823B (orange)
      #82F63B (green)
    
    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    💻 EXPORT FORMATS
    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    
    CSS Variables:
    ```css
    :root {
      --color-primary: #3B82F6;
      --color-secondary: #8B5CF6;
      --color-background: #F8FAFC;
      --color-text: #1E293B;
      --color-accent: #10B981;
    }
    

    Tailwind Config:

    module.exports = {
      theme: {
        extend: {
          colors: {
            primary: {
              50: '#EFF6FF',
              500: '#3B82F6',
              900: '#1E3A8A',
            },
          }
        }
      }
    }
    

    SCSS Variables:

    $primary: #3B82F6;
    $secondary: #8B5CF6;
    $background: #F8FAFC;
    $text: #1E293B;
    $accent: #10B981;
    

    JSON:

    {
      "primary": "#3B82F6",
      "secondary": "#8B5CF6",
      "background": "#F8FAFC",
      "text": "#1E293B",
      "accent": "#10B981"
    }
    

    Android XML:

    <color name="primary">#3B82F6</color>
    <color name="secondary">#8B5CF6</color>
    

    iOS Swift:

    extension UIColor {
      static let primary = UIColor(hex: "3B82F6")
      static let secondary = UIColor(hex: "8B5CF6")
    }
    

    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ♿ ACCESSIBILITY CHECKS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

    Contrast Ratios (WCAG 2.1):

    Text on Background: #1E293B on #F8FAFC: 14.2:1 ✅ AAA (excellent)

    Primary on Background: #3B82F6 on #F8FAFC: 4.8:1 ✅ AA (good)

    White text on Primary: #FFFFFF on #3B82F6: 4.6:1 ✅ AA (good)

    Accent on Background: #10B981 on #F8FAFC: 3.2:1 ⚠️ AA Large text only

    Recommendations: • Use darker shade of accent for small text • Primary button text should be white (#FFFFFF) • Consider #047857 for better contrast

    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💡 COLOR PSYCHOLOGY ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

    Blue (#3B82F6): • Trust, professionalism, calm • Common for: Tech, finance, healthcare

    Purple (#8B5CF6): • Creativity, luxury, wisdom • Common for: Creative services, premium brands

    Green (#10B981): • Growth, success, health • Common for: Environmental, finance, wellness

    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎨 DESIGN SYSTEM INTEGRATION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

    Suggested Usage: • Primary: Main CTAs, links, active states • Secondary: Secondary buttons, highlights • Background: Page/card backgrounds • Text: Body copy, headings • Accent: Success messages, highlights

    Color Roles: • Success: #10B981 (green accent) • Warning: #F59E0B (generate from palette) • Error: #EF4444 (generate complement) • Info: #3B82F6 (primary blue)

  6. Advanced Features:

    Color Blindness Simulation:

    • Test palette for:
      • Protanopia (red-blind)
      • Deuteranopia (green-blind)
      • Tritanopia (blue-blind)
    • Suggest adjustments for accessibility

    Mood Board:

    • Generate color combinations
    • Show usage examples
    • Create gradient options

    Brand Matching:

    • Compare to existing brand colors
    • Find closest brand matches
    • Suggest similar palettes

Example Triggers

  • "Extract colors from this screenshot"
  • "Get color palette from this website"
  • "Generate a color scheme from this image"
  • "Create Tailwind config from these colors"
  • "Find dominant colors in this logo"
  • "Build a palette from this hex code"

Best Practices

Color Extraction:

  • Filter out near-white/black unless prominent
  • Group similar colors (within 10% similarity)
  • Weight by visual importance (not just frequency)
  • Consider color psychology

Palette Generation:

  • Maintain color harmony
  • Ensure sufficient contrast
  • Generate semantic names (primary, accent, etc.)
  • Provide light and dark variations

Accessibility:

  • Check WCAG contrast ratios
  • Test with color blindness simulation
  • Recommend accessible alternatives
  • Ensure text readability

Export Formats:

  • Support common formats (CSS, Tailwind, iOS, Android)
  • Include usage guidelines
  • Provide example implementations

Output Quality

Ensure palettes:

  • Have clear dominant colors
  • Include sufficient variations
  • Pass accessibility checks
  • Come with usage guidelines
  • Export in multiple formats
  • Include color psychology notes
  • Show harmony schemes
  • Provide contrast ratios
  • Work for color-blind users
  • Have semantic naming

Generate professional, accessible color palettes ready for immediate use in design systems.

レビュー

まだレビューはありません。使ってみた感想をお寄せください。

同じリポジトリのスキル

概要と使いどころ

Comprehensive China A-share stock analysis covering fundamental analysis, technical analysis, policy impact assessment, and market-specific features (T+1 trading, price limits, northbound capital flow). Use when user asks about A股分析, Chinese mainland stocks, Shanghai/Shenzhen listed stocks, or needs analysis considering China market characteristics.

日本語の概要は準備中です。原文の説明を表示しています。

nicepkg/ai-workflow2852026年1月20日 更新

Screen and filter A-share stocks based on fundamental metrics, technical indicators, capital flow, and custom criteria. Support multiple screening strategies including value investing, growth investing, momentum trading, and dividend hunting. Use when user wants to find stocks meeting specific criteria like "低PE高ROE股票", "北向资金加仓股", "突破年线的股票".

日本語の概要は準備中です。原文の説明を表示しています。

nicepkg/ai-workflow2852026年1月20日 更新

Generate high-converting ad copy for Google Ads, Meta (Facebook/Instagram), LinkedIn, and TikTok. Creates multiple variations with A/B testing in mind. Includes headlines, descriptions, CTAs, and platform-specific formats. Use when creating ads, generating ad variations, or A/B testing ad copy.

日本語の概要は準備中です。原文の説明を表示しています。

nicepkg/ai-workflow2852026年1月20日 更新

Add new skills to an existing workflow and update all related documentation. Use when user wants to add skills from GitHub URLs to a workflow (e.g., "add this skill to the workflow", "为工作流添加技能"). Triggers on adding skills to workflows, updating workflow documentation after skill additions.

日本語の概要は準備中です。原文の説明を表示しています。

nicepkg/ai-workflow2852026年1月20日 更新

agile

無料

Agile product management, Scrum practices, and team collaboration for iterative product development.

日本語の概要は準備中です。原文の説明を表示しています。

nicepkg/ai-workflow2852026年1月20日 更新

Plan and execute effective sprints using Agile methodologies. Define sprint goals, estimate user stories, manage sprint backlog, and facilitate daily standups to maximize team productivity and deliver value incrementally.

日本語の概要は準備中です。原文の説明を表示しています。

nicepkg/ai-workflow2852026年1月20日 更新

nicepkg のスキルをすべて見る

このスキルの問題を報告する