Readability

The ease with which a reader can read and understand written text. Readability encompasses both visual readability (typography, layout, color contrast, spacing) and linguistic readability (vocabulary complexity, sentence structure, text organization). In accessibility contexts, readability is a critical concern for people with dyslexia, cognitive disabilities, low literacy, and visual impairments. WCAG addresses readability through success criteria on reading level, unusual words, and abbreviations.