Pick colors, convert between HEX/RGB/HSL, and check WCAG contrast ratios.
To pick a color: use the color wheel or enter a HEX/RGB/HSL value — the tool shows conversions between all formats and checks WCAG accessibility contrast ratios.
FreeToolHub Color Picker is a free browser-based tool that picks colors and converts between HEX, RGB, and HSL with WCAG contrast checking, no signup.
All color conversion and contrast calculations run locally in your browser — no data is uploaded. The WCAG contrast ratios follow the official W3C standard (≥4.5:1 for normal text, ≥3:1 for large text).
About this tool
Pick colors, convert HEX/RGB/HSL and check WCAG contrast ratios. Free, in-browser.
What Is the Color Picker & WCAG?
The Color Picker & WCAG is a free browser-based developer tool that handles color picker operations entirely on your device without any server round-trips. Built with standard web APIs and JavaScript, it processes your input locally — no code, data, or file content is ever uploaded to a remote server. The tool supports HEX to RGB standards and handles edge cases like Unicode characters, special encoding modes, and large inputs. Performance is optimized for files up to 10MB+ using streaming parsers where applicable. Unlike online alternatives that require accounts or impose usage limits, this tool is completely free with no caps.
Who Should Use This Tool?
Software developers use this tool daily for color picker tasks during coding, debugging, and deployment workflows. DevOps engineers rely on it for quick HEX to RGB conversions when configuring servers or CI/CD pipelines. QA testers validate RGB to HEX outputs against expected values. Students learning web development use it as a reference tool to understand how encoding and formatting actually work. Technical writers format code examples for documentation. The tool is especially valuable in secure environments where corporate policy prohibits pasting code into external websites — everything stays local.
How to Use the Color Picker & WCAG
Paste or type your input into the text area — the tool processes it instantly with no submit button needed. For color picker operations, select your desired mode or options from the dropdown controls. The output panel shows results in real time with syntax highlighting where applicable. Use the copy button to transfer results to your clipboard. For batch operations, the tool handles multiple inputs separated by newlines. All processing happens in your browser's JavaScript engine — close the tab and your data is gone. Keyboard shortcuts (Ctrl+Enter) trigger the primary action for power users.
Frequently asked
Can it verify WCAG accessibility compliance?
Yes. Pick any two colors and it instantly calculates the WCAG 2.1 contrast ratio (range 1:1 to 21:1). AA compliance requires 4.5:1 for normal text and 3:1 for large text (18px+ bold or 24px+). AAA requires 7:1. The tool flags pass/fail for each level with specific remediation suggestions.
What color format conversions does it support?
It converts between HEX (#3B82F6), RGB (59, 130, 246), HSL (217°, 91%, 60%), and displays the closest Tailwind CSS utility class. Copy any format with one click. The visual picker supports hue, saturation, lightness, and alpha channels for precise color selection without needing design software.
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