Agent skill
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.
Install this agent skill to your Project
npx add-skill https://github.com/nicepkg/ai-workflow/tree/main/workflows/talk-to-slidev-workflow/.claude/skills/color-palette-extractor
SKILL.md
Color Palette Extractor
Extract and generate color palettes from images, websites, and designs.
Instructions
When a user needs to extract colors from a source:
-
Identify Source Type:
- Image file (PNG, JPG, SVG)
- Website URL
- Screenshot
- Design mockup
- Existing color code to build palette from
-
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
-
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
-
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)
-
Format Output:
π¨ COLOR PALETTE EXTRACTOR Source: [Image/Website URL] ββββββββββββββββββββββββββββββββββββββββββ π― PRIMARY PALETTE ββββββββββββββββββββββββββββββββββββββββββ 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% ββββββββββββββββββββββββββββββββββββββββββ π COLOR SCALE (Tailwind-style) ββββββββββββββββββββββββββββββββββββββββββ 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 ββββββββββββββββββββββββββββββββββββββββββ π COLOR HARMONY SCHEMES ββββββββββββββββββββββββββββββββββββββββββ Complementary: Base: #3B82F6 (blue) Complement: #F6823B (orange) Analogous: #3B82F6 (blue) #3BF6D9 (cyan) #823BF6 (purple) Triadic: #3B82F6 (blue) #F6823B (orange) #82F63B (green) ββββββββββββββββββββββββββββββββββββββββββ π» EXPORT FORMATS ββββββββββββββββββββββββββββββββββββββββββ CSS Variables: ```css :root { --color-primary: #3B82F6; --color-secondary: #8B5CF6; --color-background: #F8FAFC; --color-text: #1E293B; --color-accent: #10B981; }Tailwind Config:
jsmodule.exports = { theme: { extend: { colors: { primary: { 50: '#EFF6FF', 500: '#3B82F6', 900: '#1E3A8A', }, } } } }SCSS Variables:
scss$primary: #3B82F6; $secondary: #8B5CF6; $background: #F8FAFC; $text: #1E293B; $accent: #10B981;JSON:
json{ "primary": "#3B82F6", "secondary": "#8B5CF6", "background": "#F8FAFC", "text": "#1E293B", "accent": "#10B981" }Android XML:
xml<color name="primary">#3B82F6</color> <color name="secondary">#8B5CF6</color>iOS Swift:
swiftextension UIColor { static let primary = UIColor(hex: "3B82F6") static let secondary = UIColor(hex: "8B5CF6") }ββββββββββββββββββββββββββββββββββββββββββ βΏ ACCESSIBILITY CHECKS ββββββββββββββββββββββββββββββββββββββββββ
Contrast Ratios (WCAG 2.1):
Text on Background: #1E293B on #F8FAFC: 14.2:1 β AAA (excellent)
Primary on Background: #3B82F6 on #F8FAFC: 4.8:1 β AA (good)
White text on Primary: #FFFFFF on #3B82F6: 4.6:1 β AA (good)
Accent on Background: #10B981 on #F8FAFC: 3.2:1 β οΈ AA Large text only
Recommendations: β’ Use darker shade of accent for small text β’ Primary button text should be white (#FFFFFF) β’ Consider #047857 for better contrast
ββββββββββββββββββββββββββββββββββββββββββ π‘ COLOR PSYCHOLOGY ββββββββββββββββββββββββββββββββββββββββββ
Blue (#3B82F6): β’ Trust, professionalism, calm β’ Common for: Tech, finance, healthcare
Purple (#8B5CF6): β’ Creativity, luxury, wisdom β’ Common for: Creative services, premium brands
Green (#10B981): β’ Growth, success, health β’ Common for: Environmental, finance, wellness
ββββββββββββββββββββββββββββββββββββββββββ π¨ DESIGN SYSTEM INTEGRATION ββββββββββββββββββββββββββββββββββββββββββ
Suggested Usage: β’ Primary: Main CTAs, links, active states β’ Secondary: Secondary buttons, highlights β’ Background: Page/card backgrounds β’ Text: Body copy, headings β’ Accent: Success messages, highlights
Color Roles: β’ Success: #10B981 (green accent) β’ Warning: #F59E0B (generate from palette) β’ Error: #EF4444 (generate complement) β’ Info: #3B82F6 (primary blue)
-
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
- Test palette for:
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.
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