Color Picker
Pick colors and get values in multiple formats (HEX, RGB, HSL, HSV)
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Complete Color Picker Guide
Color Picker is an essential color tool for designers and developers. Supports three picker styles (Sketch, Chrome, Compact), provides multiple color format outputs (HEX, RGB, HSL, HSV, CSS, Android), supports quick color presets and history. Whether for web design, UI design, brand colors, or code development, you can quickly select and get precise color values. Tool is completely free, all operations done locally in browser, protecting your privacy. Understanding color theory and picker usage tips helps you create more professional and harmonious color schemes, improving design quality.
1如何使用 / How to Use
Step 1: Choose Picker Style
Choose the color picker style that suits you. Sketch: Most comprehensive picker, supports independent adjustment of hue, saturation, brightness, suitable for precise color selection. Chrome: Simple picker, quick adjustment, suitable for fast color selection. Compact: Preset color panel, suitable for quick selection from fixed palette. Recommend designers use Sketch style, developers use Chrome style.
Step 2: Select or Adjust Color
Use picker to adjust color. Select base hue on hue bar, adjust saturation and brightness on color board. Can also click preset colors in "Quick Colors" panel for fast selection. Or click "Random Color" button to generate random color for inspiration. Top shows real-time preview and HEX value of current color.
Step 3: View Color Values
Right side shows all format values of current color. Includes: HEX (common for web), RGB/RGBA (red green blue), HSL/HSLA (hue saturation lightness), HSV (hue saturation value), CSS (style code), Android (Android format). Each format has detailed values, convenient for use in different platforms and scenarios.
Step 4: Copy Color Values
Click "Copy" button on right side of any format to copy that format's color value to clipboard. After copying, button shows "Copied" prompt, automatically recovers after 2 seconds. Can choose appropriate format based on use scenario: web development use HEX or RGB, CSS styles use CSS format, Android development use Android format.
Step 5: Use History
Tool automatically records your last 20 used colors. In "Recent Colors" area, click any color to quickly switch back to that color. Currently selected color has highlight border. History makes it easy to quickly switch between multiple colors, compare different color schemes.
2实际应用场景 / Use Cases
1Web Design Color Schemes
Select theme colors, accent colors, background colors for websites. Use color picker to precisely adjust hue, saturation, brightness, create harmonious color schemes. Can select brand primary color, then adjust brightness to create variants of different shades. Use history feature to save multiple candidate colors, convenient for comparison. Copy HEX or RGB values directly for CSS code. Recommend following 60-30-10 color rule: 60% primary, 30% secondary, 10% accent.
2UI/UX Interface Design
Design interface colors for mobile apps, desktop software. Select primary colors that match brand image, create color schemes for buttons, icons, text. Use accessibility info to check color contrast with white/black, ensure text readability. Create color variants for different states (normal, hover, active, disabled). Use HSL format for easy brightness adjustment to create shadow and highlight effects. Save common colors to history, maintain design consistency.
3Brand Visual Identity
Create standard color system for brand. Select brand primary color, then create secondary and accent colors. Use color picker to precisely define HEX value of each color, ensure consistency across different media. Create brand palette including different light/dark variants of primary color. Record RGB, CMYK (for printing), Pantone (for professional printing) values of all colors. Use history to save complete brand color system.
4Frontend Development Debugging
Quickly select and test colors during development. Use color picker to adjust UI element colors, preview effects in real-time. Copy CSS format color values to paste directly into code. Use RGB/RGBA format to set transparency. Use HSL format for easy dynamic color adjustment via code. Save all colors used in project to history for later use. Suitable for CSS, Sass, Less, Tailwind CSS and various frontend tech stacks.
5Graphic Design Color Schemes
Select colors for posters, flyers, social media images. Use random color feature to get color scheme inspiration. After selecting primary color, adjust saturation and brightness to create harmonious color scheme. Use quick colors panel to quickly try different preset colors. Copy HEX values for Photoshop, Illustrator, Figma and other design software. Use history to save multiple color schemes, convenient for comparison and selecting best option.
6Android/iOS App Development
Select theme colors and UI element colors for mobile apps. Android development use Android format (#RRGGBB), iOS development use RGB or HEX format. Select colors that comply with Material Design or iOS Human Interface Guidelines. Use accessibility info to ensure color contrast meets standards. Select appropriate colors for dark mode and light mode separately. Save all colors used in app, create color resource files.
使用技巧与最佳实践 / Tips & Best Practices
Understand Color Models
HEX: Hexadecimal format, most common for web, like #FF5733. RGB: Red Green Blue primary colors, each value 0-255, suitable for screen display. HSL: Hue (0-360°), Saturation (0-100%), Lightness (0-100%), more aligned with human color perception, easy to adjust. HSV: Hue, Saturation, Value, commonly used in design software. Choosing appropriate color model allows more efficient color adjustment. HSL is best for creating color variants (adjust lightness).
Color Scheme Principles
Monochromatic: Use different light/dark variants of same hue, harmonious and unified. Analogous: Use adjacent colors on color wheel, soft and coordinated. Complementary: Use opposite colors on color wheel, strong contrast. Triadic: Use three equidistant colors on color wheel, balanced and lively. 60-30-10 rule: 60% primary, 30% secondary, 10% accent. Avoid using too many colors, 3-5 colors most appropriate.
Color Accessibility
Ensure sufficient contrast between text and background. WCAG standards: AA level requires contrast ratio at least 4.5:1 (normal text) or 3:1 (large text). AAA level requires 7:1 or 4.5:1. Use tool's accessibility info to check contrast. Avoid using only color to convey information (consider colorblind users). Add icons or text descriptions for important information. Test color display on different devices and lighting conditions.
Color Psychology
Different colors convey different emotions and messages. Red: passion, urgency, warning, energy. Blue: trust, professional, calm, technology. Green: nature, health, growth, safety. Yellow: happiness, optimism, caution, creativity. Purple: luxury, mystery, creativity. Orange: friendly, vitality, warmth. Black: premium, professional, mysterious. White: pure, simple, modern. Choose appropriate colors based on brand positioning and target audience.
Use History Feature
Make full use of history feature to improve work efficiency. Tool automatically saves last 20 used colors. During design process, first select multiple candidate colors to save to history. Then quickly switch and compare in actual application, select best option. History clears after page refresh, recommend recording important colors to design documents or color management tools. Can screenshot history panel to save as temporary palette.
常见问题 / Frequently Asked Questions
技术说明 / Technical Details
This tool uses React Color library and modern browser APIs to implement professional color selection functionality. **Core Features**: 1. Three picker styles (Sketch, Chrome, Compact) 2. Eight color format outputs (HEX, RGB, RGBA, HSL, HSLA, HSV, CSS, Android) 3. 20 preset quick colors 4. Automatic history (up to 20) 5. Random color generation 6. Real-time color preview and conversion 7. Accessibility contrast checking **Technical Implementation**: - Uses react-color library to provide professional color picker components - Real-time calculation of RGB, HSL, HSV color values - Supports HEX and RGB conversion - Automatically calculates hue, saturation, lightness, value - Uses Canvas API to render color preview **Color Conversion Algorithms**: - HEX ↔ RGB: Hexadecimal and decimal conversion - RGB → HSL: Considers max/min values and hue calculation - RGB → HSV: Based on value and saturation calculation - All conversions maintain color precision, lossless conversion **Color Format Descriptions**: - HEX: #RRGGBB (like #FF5733) - RGB: rgb(r, g, b) (r/g/b: 0-255) - HSL: hsl(h, s%, l%) (h: 0-360, s/l: 0-100) - HSV: hsv(h, s%, v%) (h: 0-360, s/v: 0-100) - CSS: background-color: #RRGGBB; - Android: #RRGGBB (uppercase) **Accessibility Checking**: - Real-time display of color contrast with white/black - Provides WCAG AA/AAA level reference - Helps ensure text readability **Privacy Protection**: All color selection and conversion done locally in browser, no data sent to servers. History only saved in current session, automatically cleared after closing page. Fully protects your privacy. **Tech Stack**: Next.js + React + TypeScript + React Color, ensuring performance and user experience.
🔒 隐私保护承诺 / Privacy Protection
所有处理都在您的浏览器本地完成，数据不会上传到任何服务器。您的隐私和数据安全是我们的首要任务。
All processing is done locally in your browser. No data is uploaded to any server. Your privacy and data security are our top priorities.