What this tool does
Contrast Checker: free online Design & Color tool with clear controls, private processing where supported and verifiable results.
Input and output
Check contrast: the values you enter → the Contrast Checker result, which you can copy and download when the tool produces a file
How to use Contrast Checker
- Provide the values you enter.
- Leave Foreground at its default "#0b1635" or choose another value.
- Leave Background at its default "#ffffff" or choose another value.
- Press "Check contrast" and review the result in the panel on the right.
- Download or copy the Contrast Checker result, which you can copy and download when the tool produces a file.
Privacy and limitations
- Contrast Checker runs entirely in your browser: the input is not uploaded, so it never leaves your device.
- Results depend on valid input and on the limits declared by each field above; this page does not promise a fixed processing time or file size.
Frequently asked questions
- Is my data uploaded when I use Contrast Checker?
- No. This tool runs entirely in your browser, so the input stays on your device and is not uploaded.
- Which input does it accept?
- It works with the values you enter.
- What do I get back?
- After you press "Check contrast" the result panel shows the Contrast Checker result, which you can copy and download when the tool produces a file, which you can copy or download.
