Accommodating colorblind computer users

24-Aug-2016 21:42 by 10 Comments

Accommodating colorblind computer users

Some possible issues people with low vision may deal with: Embedded Text in Images People with low vision use screen magnifier programs to view the web.Avoid text that is embedded within graphics (unless it’s a vector image). If the user zooms in, the text will be rasterized and sometimes be not legible.

I hope you find this information about visual disabilities helpful so that whenever you plan on building a new web app or website, you can also plan to make it accessible to a larger range of audience.The colors on the chart below are if viewed by normal vision.Did you know about 135 million people around the world have low vision?What can you do to accommodate 8 % of the United States population that visit the web or use an app?There are a bunch of color combinations that should be avoided if at all possible.Same goes for red background with blue or green text. Users that are blind can’t rely on using a monitor or mouse to access the web.

They use screen readers and keyboards to get the information they need.

Never use “Click Here” or “Learn More” because these do not explain what the link will do, however, use something more descriptive such as “Download the Latest Version of Chrome”Provide alt text for all images. If the image is meaningless, your alt text doesn’t need to be too detailed, however, if the image conveys an action, be sure to be concise.

If you are still stuck in the 90’s and want to use a graphic for spacing, you should still use alt text, but designate it as empty by adding a space in between the quotes.

Skip to Main Content Use proper labels on form fields.

Name links carefully so that the user knows what it will do when clicked.

A person with low vision will have difficulty with daily activities such as looking at websites, reading, and driving.