Emerald Shore

Choosing colors is easy. Knowing whether those colors actually work together is the harder part. This app turns that question into a clear visual answer by helping you test foreground and background combinations before using them in your interface, website, presentation, or digital project.

Start by entering HEX values or adjusting the individual RGB channels for both foreground and background colors. Every change is reflected directly in the visual sample, so you can immediately see how headings, paragraphs, buttons, input fields, labels, and interface elements behave with your selected palette. When needed, the colors can be swapped instantly to check the opposite combination without rebuilding the setup.

The app calculates the contrast ratio between the selected colors and compares it against common accessibility levels for normal text, large text, and graphical interface components. Results are displayed clearly as Pass or Fail, making it easier to understand whether a combination provides enough visual separation for different types of content.

A dedicated preview mode shows the palette in a compact interface example, with the option to switch emphasis between normal and large text. This makes the result easier to judge in a more realistic context instead of relying only on numbers.

Useful combinations can be saved for later and organized inside a separate collection. Saved pairs include their HEX values, contrast ratio, accessibility result, and quick actions for loading, renaming, duplicating, copying, favoriting, or deleting them. A built-in search field also helps locate saved combinations by name or HEX code.

For faster sharing and documentation, the calculated result can be copied in a formatted form. Whether you are refining a design system, preparing a new interface, or simply experimenting with color combinations, the app provides a practical workspace for making readability part of the design process from the beginning.