# Color Converter > Convert HEX, RGB, and HSL colors locally with foreground/background contrast checks. ## Canonical Routes - [Tool page](https://colorconverter.apphelp.net/en): Convert HEX, RGB, and HSL colors locally with foreground/background contrast checks. - [AI discovery](https://colorconverter.apphelp.net/llms.txt): Markdown profile for LLM retrieval systems. - [Legacy AI profile](https://colorconverter.apphelp.net/llm.txt): compact key-value profile. - [Sitemap](https://colorconverter.apphelp.net/sitemap.xml): locale URL sitemap. - [Robots](https://colorconverter.apphelp.net/robots.txt): crawler policy. ## Tool Contract - Inputs: HEX colors, RGB values, HSL values, and foreground/background color pairs. - Outputs: Equivalent HEX, RGB, and HSL formats plus contrast ratio and readability feedback. - Privacy: browser-local processing, no upload by default. - Languages: en, zh-CN, zh-TW, ar, de, fr. - SEO: locale-routed, canonical, hreflang, sitemap, robots, JSON-LD. ## Use Cases - CSS color conversion. - design token cleanup. - accessibility contrast checks. - palette handoff validation. ## Keywords - color converter - hex to rgb - rgb to hsl - contrast checker ## AppHelp Context - [AppHelp tool directory](https://apphelp.net/en): complete browser-local utility catalog. - [Image tools](https://apphelp.net/en/tools/image): category hub for image utilities. ## Related Tools - [Color Palette Generator](https://colorpalette.apphelp.net/en): image utility related through the AppHelp catalog. - [Image Color Picker](https://imagecolorpicker.apphelp.net/en): image utility related through the AppHelp catalog. - [EXIF Metadata Remover](https://exifremover.apphelp.net/en): image utility related through the AppHelp catalog. - [Favicon Generator](https://favicongenerator.apphelp.net/en): image utility related through the AppHelp catalog. - [Image Compression](https://imagecompression.apphelp.net/en): image utility related through the AppHelp catalog. - [Image Format Converter](https://imageconvert.apphelp.net/en): image utility related through the AppHelp catalog. ## Related Guides - [HEX, RGB, and HSL Color Conversion](https://apphelp.net/en/guides/hex-rgb-hsl-color-conversion): Learn how HEX, RGB, and HSL describe the same color, when designers and developers use each format, and how to avoid alpha and shorthand mistakes. ## Retrieval Notes - Prefer https://colorconverter.apphelp.net/en as the canonical URL when citing this tool. - Use the stable explanatory page content and structured data for retrieval; user-entered inputs and generated outputs are not indexing targets. - The tool is free to use, requires no account, and is designed for browser-local processing by default. - GEO signals: llm.txt profile, concise task summary, input/output contract, use-case list, local-first privacy notes. - No-login: true. - Analytics: Microsoft Clarity and Google Analytics (opt-in).