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Color & Design tool

Palette Generator

Generate harmonious five-colour palettes from a base colour.

Runs on-deviceNo sign-upFree
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Palette Generator workspace

Workspace

Palette Generator

Runs locally

Screen-accurate enough

Values are calculated on the fly. CMYK is an approximation for screen preview; use a colour-managed proof for print.

Values & CSS0 chars

The guide

By the utils.sbs team · Reviewed November 2026 · How we build and review tools

Quick answer

Palette Generator is a free browser-based color & design tool. Generate harmonious five-colour palettes from a base colour. It runs with JavaScript and Canvas colour conversions locally, requires no account and does not upload your files. Open the page, add your input, adjust any options and download the result.

What is Palette Generator?

Palette Generator is a free browser-based color & design tool from utils.sbs. Generate harmonious five-colour palettes from a base colour. It is built for quick, focused jobs: open the page, add your input, adjust the options and take the result with you. No account, install or server upload is required.

At a glance

CategoryColor & Design
InputHEX, RGB or HSL values, or an image for colour sampling
OutputCSS, JSON or a generated colour palette
EngineJavaScript and Canvas colour conversions
ProcessingIn your browser
PriceFree
AccountNot required

How Palette Generator works

Colour values are converted with standard colour-space formulas and generated as CSS, design tokens or image palettes.

How to use Palette Generator

  1. 1Open Palette Generator and add your input.
  2. 2Adjust the options: base colour, harmony.
  3. 3Run the tool, check the preview or result, and download the output.

When to use Palette Generator

  • Build a palette for a website or design system.
  • Convert colour values between HEX, RGB and HSL.
  • Check contrast or sample colours from an image.

Inputs and options

Base colour
Set this value before running the tool.
Harmony
Choose one of 4 options.

Limitations

Screen colour and colour-space differences can change how values appear on other devices.

Privacy and accuracy

Palette Generator processes its input in the browser whenever the platform API allows it. Files and values are not uploaded to a server for processing, and the tool does not require an account. For calculations, use the result as a reference and verify important decisions against the source formula or a qualified professional. Read our methodology.

FAQ

Palette Generator questions

  • What can I do with Palette Generator?

    Generate harmonious five-colour palettes from a base colour. Palette Generator is part of the Color & Design shelf on utils.sbs and is designed for quick, one-off tasks.

  • Is Palette Generator free to use?

    Yes. Palette Generator is free, requires no account, and has no per-file or per-use charge.

  • Are my files uploaded when I use Palette Generator?

    No. Palette Generator is designed to process your input locally in the browser. Files are not uploaded to a server for processing.

  • What formats does Palette Generator support?

    It accepts colour values and returns CSS, JSON or a generated palette that you can copy or download.

  • Can I use Palette Generator on my phone?

    Yes. Palette Generator is responsive and works in modern mobile browsers. Very large files may be limited by the device's available memory.

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