Color Tools

Color Contrast Checker

Test foreground and background contrast against WCAG targets. Everything stays on your device.

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Browser-only processingYour files are processed locally in your browser and are never uploaded to our servers.

Browser-only processing

How to use Color Contrast Checker

  1. Add or enter your input.
  2. Choose the options that fit your task.
  3. Process, copy or download the result.

Why use this tool?

No registrationLocal processingResponsive designClear output

Useful guidance and limitations

Color calculations and extracted palettes are practical suggestions. Display calibration, transparency and image compression can affect perceived color.

Related tools

Color PickerPick colors and copy normalized HEX, RGB and HSL values.Color ConverterConvert HEX, RGB, HSL, HSV, CMYK and CSS color names.Gradient GeneratorBuild linear, radial and conic CSS gradients with editable stops.

Frequently asked questions

Is this tool free?

Yes. Color Contrast Checker is free to use and does not require registration.

Is my data uploaded?

No. Your input is processed locally in your browser and is not sent to Toolare servers.

Does it work on mobile?

Yes. The interface is designed for modern desktop and mobile browsers.