ColorSense by avera
Simulate color blindness vision on any page to test and improve accessibility for your designs.
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About this extension
ColorSense lets you view any web page through color blindness simulation filters. Choose from three common types of color vision deficiency (CVD):
The popup lets you pick a simulation type and toggle it on/off for the current tab. A canvas overlay applies the color transformation in real time, so you can see how your content appears to users with different types of color blindness.
Set a default simulation type in settings and use the keyboard shortcut to toggle quickly. ColorSense stores only your preferences locally and never transmits any data.
- Protanopia (reduced sensitivity to red light)
- Deuteranopia (reduced sensitivity to green light)
- Tritanopia (reduced sensitivity to blue light)
The popup lets you pick a simulation type and toggle it on/off for the current tab. A canvas overlay applies the color transformation in real time, so you can see how your content appears to users with different types of color blindness.
Set a default simulation type in settings and use the keyboard shortcut to toggle quickly. ColorSense stores only your preferences locally and never transmits any data.
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Permissions and data
Required permissions:
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0
- Size
- 30.1 KB
- Last updated
- 3 months ago (Jun 5, 2026)
- Related Categories
- License
- Mozilla Public License 2.0
- Version History
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