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WCAG 2.0 uses the same three levels of conformance (A, AA, AAA) as WCAG 1.0, but has redefined them. The WCAG working group maintains an extensive list of web accessibility techniques and common failure cases for WCAG 2.0. [24] WCAG 2.1 is backwards-compatible with WCAG 2.0, which it extends with a further 17 success criteria.
The Template:Color contrast conformance gives a "AAA", "AA" or "none" judgment for the level of conformance to WCAG 2.0 of two colors together, in terms of contrast ratio, where the colors can be either RGB #numbers (#56F3BB) or color names (green, darkorange, or NavahoWhite, etc.).
WCAG 2.0: 4 principles that form the foundation for web accessibility; 12 guidelines (untestable) that are goals for which authors should aim; and 65 testable success criteria. [14] The W3C's Techniques for WCAG 2.0 [15] is a list of techniques that support authors to meet the guidelines and success criteria. The techniques are periodically ...
The Web Content Accessibility Guidelines 1.0 (known as WCAG) were published as a W3C Recommendation on 5 May 1999. A supporting document, Techniques for Web Content Accessibility Guidelines 1.0 [35] was published as a W3C Note on 6 November 2000. WCAG 1.0 is a set of guidelines for making web content more accessible to persons with disabilities.
October 4, 2017, ITI published an updated version, VPAT 2.0, reflecting the provisions of the newly-published Revised Section 508. In addition, VPAT 2.0 incorporated provisions from the European ICT accessibility standards for public sector procurement, EN 301 549 V1.2.1, [ 4 ] and the W3C WCAG 2.0 web content accessibility guidelines.
Previous versions of EN 301 549 embraced WCAG 2.0 as an ‘electronic attachment’. The next version of EN 301 549 (v4.1.1) will be released in 2026. [11] This new version is planned to support the European Accessibility Act and to include WCAG 2.2 AA, as well as significant updates to requirements related to Real-Time Text. [12]
Web "content" generally refers to the information in a Web page or Web application, including text, images, forms, and sounds. (More specific definitions are available in the WCAG documents.) [74] The WCAG is separated into three levels of compliance, A, AA and AAA.
[WCAG 2] Row and column headers ( ! ) Like the caption, these help present the information in a logical structure to visitors. [WCAG 3] The headers help screen readers render header information about data cells. For example, header information is spoken prior to the cell data, or header information is provided on request.
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