Design a webpage that makes sense without having to visually see an image. This includes the use of images as text and images of complex data.
For someone with a visual impairment, there can be significant loss of meaning and understanding if data is supplied in an image that they have difficulty seeing or cannot see.
Do not use images as text. Include detailed, where necessary, description for all relevant images.
For more information, visit the WCAG links for this topic.