This is a simulation of how a Deuteranope (with no functioning green cones) might see this website.
Notice how the masthead at the top looks a different colour, but isn’t darkened like in the Protanope.
Ishihara Colour Vision testing simulation
A Deuteranope incorrectly sees a number 3 instead of 8
A Deuteranope will not see the number 5
This is a simulation of the most severe form of a green defect, some with a very mild defect would see the site almost the same as a colour normal.
These are only simulations! Your monitor calibration, room lighting and own colour vision will affect what you see, but it does give a fair simulation.
