Color Tool Arri

A fast, domain-focused color tool for designers and developers to convert color formats, compare palettes, and validate color harmony.

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About This Tool

Color Tool Arri provides cross-format color conversion and palette exploration for designers and developers. Users input a color in HEX, RGB, or HSL, and the tool returns the equivalent values in the remaining formats, with optional alpha transparency preserved.
Core logic includes input normalization, rigorous format validation, and standard color space math. Conversions follow sRGB assumptions and WCAG luminance formulas to compute relative luminance and contrast. Palette features support lighter and darker variants and harmonious pairings.
Unique value lies in pairing reliable color math with quick palette iteration and export options, enabling consistent color usage across components and easy integration into CSS or design tokens. The tool supports CSS variable exports and JSON payloads for design system pipelines.
Use cases include color audits, component theming, CSS variable exports, accessibility checks, and rapid prototyping of brand palettes across light and dark contexts.

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How to Use

Provide inputs: Enter a color in HEX, RGB, or HSL.
View outputs: See equivalent values in all supported formats and alpha if present.
Check accessibility: Review luminance and contrast results, with suggested compliant pairs.
Generate palettes: Create lighter/darker variants or harmonious palettes and export options.
Export results: Copy values or export as CSS variables, JSON, or a palette file.

Frequently Asked Questions

Find Quick Answers

What formats are supported?

The tool accepts HEX (with or without the leading #, 3 or 6 digits, optional alpha), RGB/RGBA, and HSL values. CMYK is provided for reference in conversions and can be exported when needed.

Can I export results for code or CSS?

Yes. Results can be exported as CSS variables, JSON payloads, or plain value lists suitable for integration into stylesheets and design tokens.

Does it handle transparency?

Yes. Alpha transparency is preserved during conversions across spaces. When present, converted values include corresponding alpha channels in each format.

Is usage free for commercial projects?

The utility is provided as a free online tool. For commercial deployment, review hosting, data handling, and licensing terms applicable to your use case.

Need to run multiple calculations?

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