Photos and documents
Colour blindness simulator
See how an image or a set of colours looks with protanopia, deuteranopia, tritanopia or in greyscale.
Choose an image or drag it here
For example a screenshot of your dashboard or design
Check colours
What does this mean?
About 1 in 12 men and 1 in 200 women see certain colours differently, usually red and green. Choose an image to see what it looks like for them, or enter a few colours to check whether they can still be told apart. Handy for dashboards, charts and status colours: red and green alone is often not enough.
This is an approximation using the common Machado method; real perception differs from person to person. Your image never leaves your device.