What about 3-digit shorthand?

3-digit hex is expanded by duplicating each digit: `#f00` becomes `#ff0000`.

Is there a built-in color picker?

Yes. Click the swatch to open the native color picker and read the HEX/RGB directly.

HEX to RGB

Fast bidirectional HEX/RGB converter with a color picker and live swatch. Supports 3-digit, 6-digit, and 8-digit (with alpha) hex formats.

Runs locally in your browser

Preview

HEX

HEX#6366f1

HEX (upper)#6366F1

RGBrgb(99, 102, 241)

Tailwind arbitrarytext-[#6366f1]

CSS variable--color: #6366f1;

102

241

Alpha

1.00

Luminance

0.437

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About HEX to RGB

Fast bidirectional HEX/RGB converter with a color picker and live swatch. Supports 3-digit, 6-digit, and 8-digit (with alpha) hex formats.

HEX to RGB is part of FizzKit — a collection of focused, browser-based tools. Because everything runs locally, it works offline once loaded and never exposes your data to a remote server.

Frequently asked questions

Yes. 8-digit hex (e.g., `#ff000080`) includes an alpha channel that maps to `rgba(255, 0, 0, 0.5)`.

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