Where to begin
Based on my experience working with the University of Derby Online Learning , the best place to start would be the Web Content Accessibility Guidelines (WCAG 2.1) . This guidance will provide you with a range of essential accessibility guidelines which I and many others use to make online designs accessible. From the 23rd of September 2019, the law in the UK is now that public body websites meet these regulations. As it currently stands, UK commercial websites are not required to meet these regulations, but it is considered good practice. After all, if the public body websites are required to meet these regulations, what harm would it do to ensure a commercial website does too! On a side note, you must ensure that commercial websites meet the Equality Act 2010: guidance .
It's also important to note that most public body websites still do not meet the required regulations, potentially leading to fines and being sued by members of the public trying to access their content. Black Label UK has the perfect solution to guarantee your compliance, protecting you from costly fines - but more about this later. Let's jump into some points you can implement straight away.
Ensure you use high contrast
This is one of the simplest ways to align your designs with the WCAG 2.1 guidelines. According to WHO , there are 1 billion people who struggle with vision impairments. Individuals with low vision will struggle to read text on your site if the contrast between the text and the background colour is not strong enough. Therefore it is crucial to ensure a high enough contrast between text and the background.
There is a range of free tools online to quickly check the contrast between colours in your design, ones I would recommend including Contrast Checker and Coolors Color Contrast Checker .
Adding visual cues
Many accessibility requirements need to be met to make your online content fully accessible. One of these requirements includes colour blindness. People with colour blindness will often struggle to understand your content if you are only using colour to show an action, communicate something important, or prompt a response. An easy solution is to combine these colours with an extra indicator; this could be a micro animation, a label, or a pattern. An example of this would be to include an icon alongside an error message - ensuring everyone can understand what this means.
Labelling form fields
This is where the battle of UI and UX design start. When you design a form from a visual perspective, you may use placeholder text as labels because it looks nice... Now think of this from a UX perspective keeping accessibility in mind. Most placeholder text uses a greyed out colour and therefore has a low contrast ratio - this can make it very difficult to read for some users. Others may forget what they are meant to be typing; they might face difficulties remembering what the field is asking for when the label has gone.
Based on this, that's why we would always suggest that the labels always remain visible, especially when completing an input field. By doing so, you'll prevent people from potentially losing context with what they are writing.
You can find further research on this topic completed by Nielsen Norman Group (world leaders in research-based user experience) here in the following article. Placeholders in Form Fields Are Harmful