Developer Tools
Color Converter
Pick a color or type any value to convert between HEX, RGB, and HSL.
Convertissez entre HEX, RGB et HSL
Features of the Color Code Converter
HEX to RGB
Converts 3-digit and 6-digit hex codes (#FFF, #FFFFFF) to RGB values instantly.
RGB to HEX
Converts RGB(r, g, b) values to their hex equivalent for use in CSS.
HSL Conversion
Converts to and from HSL (Hue, Saturation, Lightness) format used in modern CSS.
CMYK Support
Converts to CMYK values useful for print design workflows.
Color Preview
Displays a live color swatch so you can visually verify the converted color.
How to Use the Color Code Converter
- Select your input color format (HEX, RGB, HSL, or CMYK).
- Enter your color value in the input field.
- All equivalent color formats are displayed instantly.
- Click any output value to copy it for use in your CSS or design tool.
FAQ
What is the difference between HEX and RGB?▾
HEX is a base-16 representation of an RGB color (e.g., #FF5733 = rgb(255, 87, 51)). Both represent the same color — HEX is compact and common in CSS.
When should I use HSL instead of HEX?▾
HSL is easier to manipulate programmatically. Adjusting lightness or saturation is intuitive with HSL, making it great for theming and dynamic color calculations.
Does this converter support alpha transparency?▾
Yes, you can convert RGBA and HSLA colors that include an alpha channel for transparency.
What is CMYK used for?▾
CMYK (Cyan, Magenta, Yellow, Key/Black) is the color model used in professional printing, not screens. Converting to CMYK helps bridge web design and print production.
Color Tips for Web Developers
- CSS supports HEX, RGB, RGBA, HSL, HSLA, and named colors — use whichever is clearest in context.
- HSL is ideal for generating color palettes: change only the hue to get related colors.
- Use opacity in HSL/RGB (rgba or hsla) rather than transparency filters for better performance.
- Color contrast ratio of 4.5:1 is required for WCAG AA accessibility compliance.
- CSS custom properties (--color-primary: #3498db) make global color changes one-line updates.
More Developer Tools
JSON Formatter & Validator
Format, validate, and minify JSON data instantly
Base64 Encoder / Decoder
Encode or decode Base64 strings in one click
URL Encoder / Decoder
Encode or decode URL-safe strings
Strong Password Generator
Generate strong, secure passwords with custom rules
CSS Formatter & Beautifier
Format and beautify or minify CSS code online
HTML Formatter & Beautifier
Format and beautify or minify HTML code with proper indentation
XML Formatter & Beautifier
Format and validate XML. Check if XML is well-formed
CSV Formatter Online
Format CSV data and preview it as a table with multiple delimiter support
CSV to JSON Converter
Convert CSV data to a JSON array instantly
JSON to CSV Converter
Convert a JSON array to CSV format instantly
JSON to JSONP Converter
Wrap JSON in a JSONP callback function for cross-domain requests
JSONP to JSON Converter
Strip JSONP callback wrapper and extract the pure JSON
Cron Job Expression Generator
Generate cron expressions with human-readable descriptions and presets
Mask Sensitive Data
Mask emails, phone numbers, and credit cards in text
Password Strength Checker
Check password strength with a live meter and criteria checklist
Random Email Generator
Generate random email addresses for testing and development
Random Username Generator
Generate random usernames in various styles for accounts and profiles
Domain Name Extractor
Extract domain names from URLs and text with deduplication
Sitemap XML Validator
Validate sitemap XML structure and list all URLs found
Online Screen Keyboard
Virtual on-screen keyboard with shift, caps lock, and copy support
UUID Generator
Generate random UUID v4 or timestamp-based UUID v1 in bulk
Hash Generator (SHA-256 / MD5)
Generate SHA-256, SHA-1, and MD5 hashes from any text
HTML Entity Encoder / Decoder
Encode or decode HTML special characters and entities
Regex Tester
Test regular expressions with live match highlighting
JWT Decoder
Decode JWT tokens and inspect header and payload
JSON to YAML Converter
Convert JSON data to YAML format in the browser
YAML to JSON Converter
Convert basic YAML to pretty-printed JSON
SQL Formatter Online
Format and beautify SQL queries or minify to one line
Number to Words Converter
Convert integers up to 999 billion into English words
CSS Gradient Generator
Build linear or radial CSS gradients visually and copy ready-to-use CSS code
Color Palette Generator
Generate complementary, analogous, triadic, and monochromatic color palettes
Color Contrast Checker
Check color contrast ratio for WCAG 2.1 AA and AAA accessibility compliance
Meta Tag Generator
Generate complete HTML meta tags including SEO, Open Graph, and Twitter Card tags
Robots.txt Generator
Generate a robots.txt file with custom crawler rules, disallow paths, and sitemap URL
Image to Base64 Converter
Convert PNG, JPG, GIF, SVG, or WebP images to Base64 data URI for HTML and CSS
QR Code Generator
Generate QR codes from URLs, text, email, phone, or Wi-Fi. Download as PNG or SVG
CSS Box Shadow Generator
Visually build CSS box-shadow styles with live preview and copy the CSS code
CSS Flexbox Generator
Configure flexbox container properties visually with live preview and copy CSS
PX ↔ REM / EM Converter
Convert CSS units between pixels, REM, and EM with bulk conversion and reference table
UTM Link Builder
Build UTM-tagged campaign URLs for Google Analytics. Add source, medium, campaign, and more
URL Parser & Analyzer
Parse any URL into protocol, hostname, path, query parameters, and hash. Edit and rebuild URLs
CSS Border Radius Generator
Control each corner radius individually with live preview and copy the CSS code
JSON ↔ XML Converter
Convert JSON to XML and XML to JSON instantly with formatted output
CSS Grid Generator
Build CSS grid layouts visually with live preview and instant code export
IP Address Lookup
Look up geolocation, ISP, and timezone for any IP address instantly
HTTP Status Codes
Complete reference for all HTTP status codes 1xx–5xx with descriptions
Color Blindness Simulator
Simulate how images and colors appear with different types of color blindness
Markdown Table Generator
Build Markdown tables visually and copy the code instantly.
Image to Base64
Convert any image to Base64 data URI for embedding in code.