A simple color contrast ratio checker that lives in your Windows system tray.
OTHER License
A simple color contrast ratio checker that lives in your Windows system tray.
Checking color contrast ratios is an integral part of making sure your designs are accessible. The WCAG defines a number of contrast levels between two colors that tell you how easy it is to read the text when one of the colors is the foreground and the other the background color. While there are plenty of online tools available that let you enter the color codes and spit out the contrast ratio, Contrastor aims to make this process even easier. It lives right in your Windows system tray. After opening it, you can simply pick the foreground and background color from your screen using the eyedroppers. It will instantly tell you the contrast ratio. No nonsense, just a straightforward answer to the question "Do these two colors work together?"
If you are using macOS, check out Contrast, the app that inspired Constrator.
These are the possible contrast levels:
7.00
. For reference: Black (#000000
) on white (#FFFFFF
) has a contrast ratio of 21.00
.4.5
.18pt
. The score here needs to be 3.0
or higher.For a more in-depth overview, have a look at Contrast's great guide.
Contrastor is a portable application that doesn't need an installer. Simply grab the ZIP download of the latest release and extract it somewhere. You can then simply launch Contrastor through the Contrastor.exe
.
Just create a shortcut to Constrator in the Startup folder (Win + R -> shell:startup
).
Contrastor is licensed under the MIT license, see the LICENSE
file for details. Pull requests are welcome!