Color Blindness - The use of both colours and symbols can help the message. For example some people are colour blind to the colour red, which is often used to display error messages. If a black symbol is also used, they will be able to see what is going on. Another option is to make the colour palette minimal limiting to 2-3 colours in the design. Pattern and contrast can also help distinguish between items. Avoid the following colour combinations:
- Green & Red
- Green & Brown
- Blue & Purple
- Green & Blue
- Light Green & Yellow
- Blue & Grey
- Green & Grey
- Green & Black
Vision Impairment - Enlarged text - or the ability to increase the font size on the front end of the website. Contrast - which helps to distinguish the different text rather than colours that are close in hue and blind together for vision impaired.
Blindness - Screen readers can be used by individuals with Blindness to help access the website. This is a device that sends the information on the website to a speech synthesizer to either be spoken or to a braille display.
Deafness - Closed captioning on any video or audio displayed on the site. Or a link to the script of the video.
Motor difficulty - Ability to input information with voice/speech to text. Use clear and concise layout which are easy to navigate.
Epilepsy - Avoid use of "flashing" objects or have an option to turn them off.
Dyslexia - Simple, uniform layouts. Keep jargon to a minimum and use plain language. Avoid pages overloaded with too much information and avoid too many distractions. Text minimum of 12pt or text scaling ability. Avoid the use of capitalisation for emphasis, avoid italics, do not right justify text. Keep paragraphs shorts and use bullet points. Avoid columns.
Cognitive disabilities - Simple, consistent and clear.
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