Color Blind Pal allows people with color blindness or color deficiency to see the colors on their screen more clearly. It also lets developers see what their screen looks like to someone who is color blind.

The Color Selector feature shows the color at your cursor, including a descriptive name like "faint green". It tells you what the color's hue, saturation, and value are, so you'll know exactly what the difference is between, for example, "teal" and "cyan".

The Color Window feature isolates a color of your choosing so you can see what parts of your screen are that color. For instance, you can look at a picture of a sunset through the Color Window and cycle the selected color from purple to yellow to see exactly what colors are where. You can use the Shift feature to change the hues that are harder for you to differentiate to easier colors, based on the color blindness type you select. This feature can also be used to simulate any form of color blindness.

You can easily open and close the Color Selector and the Color Window with keyboard shortcuts or the menu bar icon - click the eye icon on the menu bar to access Color Blind Pal.

With Color Blind Pal, you can easily do the following and more:
• Find out exactly what any color is
• See all the colors in any image
• Read any color-coded map, chart, or graph
• Pass a color vision test (it turns out there really are numbers in those dots!)

But wait, there's more! Enjoy even more pro features in Color Blind Pal:

The Stripes feature in the Color Window draws a striped pattern on selected colors, like red. This feature makes it natural to see whether a color is red or green while still preserving the actual color.

The Color Portal lets you apply the Color Window to your whole screen while still directly interacting with the windows behind it. Never work without color vision again!

The customization features let you personalize Color Blind Pal. You can turn on developer color codes for the Color Selector, change the color names to "scientific" or "colloquial" with different color name packs, set your own keyboard shortcuts, and customize the Color Window toolbar.

What’s New

Version 1.1.7

Clarified permission dialog on startup.

Ratings and Reviews

3.3 out of 5
7 Ratings

7 Ratings

Bogus Bad ,

Doesn’t Open in High Sierra at all

April 26, 2020. I was excited to use this since the MacOs does not support the color filters that the iOs does. I installed this and it won’t open at all. If it worked, I’d love to try it.


Does not open

I’m writing in July 2020. App not opening on my machine (running High Sierra)

swisa10 ,

doesn't work

app wont even open. Not sure if it is just not kept up with or what. cant even open it.

Developer Response ,

Hi, sorry the app wasn't working. We believe we've fixed the issue on macOS Catalina. Please update the app to v1.1.5 and try again. If the app only shows your desktop wallpaper, please allow the app under System Preferences > Security & Privacy > Privacy > Screen Recording. If the app still isn't working, it'd be a big help if you could email us at Thanks!


Vincent Fiorentini
742.4 KB

OS X 10.10 or later, 64-bit processor



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer