{"id":8826,"date":"2024-01-23T16:44:33","date_gmt":"2024-01-23T16:44:33","guid":{"rendered":"https:\/\/www.tuwebaccesible.es\/?p=8826"},"modified":"2025-01-15T12:53:59","modified_gmt":"2025-01-15T12:53:59","slug":"the-three-levels-of-web-accessibility-conformance-criteria-a-aa-and-aaa","status":"publish","type":"post","link":"https:\/\/www.tuwebaccesible.es\/en\/the-three-levels-of-web-accessibility-conformance-criteria-a-aa-and-aaa\/","title":{"rendered":"The Three Levels of Web Accessibility: Conformance Criteria A, AA, and AAA"},"content":{"rendered":"

[vc_row][vc_column][vc_column_text uncode_shortcode_id=”504943″]What are the accessibility levels? The starting point for tackling the construction of an accessible website is to know the state of the portal we want to improve. What are the errors? What changes are necessary? These two questions are common, and they both share one answer: the web accessibility of a portal is defined according to the conformance criteria A, AA, and AAA established by the WCAG 2.1<\/a> standard.<\/p>\n

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This document outlines four fundamental principles of web accessibility<\/a>: perceivable, operable, understandable, and robust. Based on these premises, three levels are set that determine the degree of accessibility of a portal. Level A is the most basic and includes the fundamental requirements, although it does not guarantee access for all users.<\/p>\n

To achieve this, it is necessary to meet minimum functionalities, including providing text alternatives for non-text content, subtitling audio, adapting content to different formats without losing information, or avoiding the use of color as the sole visual medium. Availability of functions from a keyboard, sufficient reading time, navigable space, the use of a single pointer, and readability are some of the criteria to consider.<\/p>\n

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