Color Converter — Free Online Tool

A color converter translates colors between HEX, RGB, and HSL formats instantly. Developers use it to convert design tokens from Figma (HEX) to CSS (RGB/HSL), ensure color consistency across platforms, and debug color values in stylesheets.

Features

• HEX, RGB, and HSL support: Convert freely between the three most common CSS color formats.
• Flexible input parsing: Accepts colors with or without # prefix, with spaces, and in various notations.
• Instant conversion: Results update immediately as you type — no button click needed.
• Works completely offline: Once loaded, processes data without any internet connection.

Frequently Asked Questions

What color formats are supported?

HEX (#rrggbb), RGB (rgb(r, g, b)), and HSL (hsl(h, s%, l%)) are fully supported.

Does it support alpha/transparency?

The converter handles opaque colors. For alpha, append the alpha channel manually after conversion.

Can I convert named CSS colors?

Yes. Named colors like 'red', 'dodgerblue', and 'coral' are recognized and converted.

Can I convert between HEX and RGB?

Yes. Enter any HEX value and the converter instantly shows the equivalent RGB and HSL representations.

Is this tool free?

Yes, this tool is completely free with no usage limits, no ads, and no account required.

Does it work offline?

Yes. Once the page loads, all processing happens locally in your browser — no internet connection needed.

Is my data safe with this tool?

Absolutely. Your data never leaves your browser. Everything is processed client-side with zero server uploads.

Can I convert colors for Tailwind CSS?

Yes. Convert any HEX or RGB color to HSL to find the closest Tailwind CSS utility class match.

What happened to smalldev.tools?

smalldev.tools is no longer available. Prism by SWEDevTools offers the same developer tools and more, with offline support, pipeline chaining, and completely free usage — no signup required.

Is Prism a good alternative to coolors.co for color tools?

Yes. Prism converts colors and generates palettes entirely offline in your browser. No signup, no ads, and you can chain color tools with other Prism utilities in pipelines.