What is Goodpalette?

Updated

Goodpalette is a browser-based tool that generates color palettes for UI and UX design and shows how those palettes would look inside a mockup of an app or website. It is aimed at designers who want to judge a color scheme in context rather than as isolated swatches. Because it runs in the browser, there is nothing to install — you open the site and start generating. Note that the app requires JavaScript to be enabled; without it, the page will not run.

What it does

The tool covers two connected jobs:

  • Palette generation — produces color schemes intended for interface work, not just general illustration or branding.
  • Dynamic mockup preview — renders the palette onto a sample app or website layout so you can see how the colors behave on real UI elements.

The second part is the differentiator. A palette that looks balanced as a row of swatches can fall apart once it is applied to buttons, backgrounds, text, and cards. Previewing inside a mockup surfaces those problems before you commit the colors to a real project.

How the preview changes your decisions

When you see a palette applied to a mockup, you are effectively checking contrast and hierarchy:

  • Does body text stay readable against the background color?
  • Do interactive elements like buttons stand out from surrounding surfaces?
  • Do accent colors draw attention where you want it, or compete with each other?

For example, if you are choosing colors for a dashboard, a mockup preview lets you see whether your primary accent still reads clearly when it sits next to chart colors and status indicators. That is a different question from whether the accent looks good on its own.

Who it is for

You are… Goodpalette is useful if…
A UI/UX designer You want to test palettes in a realistic interface context before applying them
A developer You need a quick starting palette and want to sanity-check it against a layout
A solo maker You are building an app or site and want a coherent scheme without a dedicated design tool

If you only need a single brand color or a print-oriented palette, a general color tool may be enough. Goodpalette's value is specifically in the UI/UX context and the mockup preview.

How to use it

  1. Open goodpalette.io in a browser with JavaScript enabled.
  2. Generate a palette using the tool's controls.
  3. Review the palette as applied to the mockup preview rather than only as swatches.
  4. Adjust until the colors hold up in the previewed layout.
  5. Carry the final colors into your design or code.

The expected result at the end is a palette you have already seen working on an interface-like layout, which reduces the risk of rework after you apply it.

Common snags

  • Blank page or no response — the app needs JavaScript. If scripts are blocked, the interface will not load.
  • Judging only by swatches — the mockup preview is the point; skipping it removes the main advantage.
  • Assuming export or account features — the available material describes generation and preview only, so check the site itself for any export, saving, or account options before relying on them.

The short version

Goodpalette is a free-to-open, browser-based palette generator for UI and UX work, distinguished by dynamic mockup previews that let you evaluate colors in an interface context. Use it when the question is not "is this a nice color?" but "does this color scheme work on a screen?"