A friend of mine came and asked
- Hey what do these dots represent?
And I responded
- The lavender dots represent twitter, these green ones represent facebook, the orange ones represent foursquare ...
And here is the legend:
Then he said
- But I'm colorblind, I can't differentiate. They all seem same to me.
This was a surprise. Until now I haven't been considered colorblind people in my design process and I wonder if it is only me. Should we consider them in design process? What is the percentage of colorblind people in society? In addition, if you have any tips about colorblind assistance it would be very nice.