You might be thinking: “why should I bother designing for such a small group of users?” But generally, the elements that are favorable for colorblind users are actually considered to be good design practices in the wider sense. So, how can I design for better color accessibility? The image below shows what the rainbow may look like to individuals with each of these forms of color blindness. The third type of color deficiency, Tritanopia, is the least common and refers to sufferers who struggle to distinguish blue or yellow light. For example, a person with Protanopia will confuse blue and purple because they can’t recognize the red element of the color purple.

Those affected by Protan color blindness are less sensitive to red light, whilst sufferers of Deuteranopia have the same problem with green. The most common is red/green color blindness, where sufferers mix up all colors which have red or green as part of the whole color.

The deficiency is the result of a mutation in the X-chromosome – meaning women are more likely to be carriers than sufferers – and it can manifest in 3 main ways. Most color blind people are able to see things just as clearly as the rest of the population, the difference is their inability to distinguish red, green, or blue light. First up, what exactly is color blindness?

So, before you run to your design team in a panic, take a look at our roundup of top things to consider when designing a UX for color accessibility. But how do you ensure that your user experience appeals equally to these visitors? We’re here to lend a helping hand.

This means that for every 100 users that visit your website or app, up to 8 people could actually experience the content much differently that you’d expect. Color blindness or color vision deficiency (CVD) affects around 1 in 12 men and 1 in 200 women worldwide.

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