2011
Wave : web accessibility evaluation tool
État des lieux de l'accessibilité de HTML5
Introduction to WAI ARIA
Accessibilité : module Firefox ARIA
2010
RGAA - Accessibilité pour les Administrations
2009
Techniques for WCAG 2.0
"Techniques for WCAG 2.0" provides information to Web content developers who wish to satisfy the success criteria of Web Content Accessibility Guidelines (WCAG) 2.0 [WCAG20]. Techniques are specific authoring practices that may be used in support of the WCAG 2.0 success criteria. This document provides "General Techniques" that describe basic practices that are applicable to any technology, and technology-specific techniques that provide information applicable to specific technologies. The World Wide Web Consortium only documents techniques for non-proprietary technologies; the WCAG Working Group hopes vendors of other technologies will provide similar techniques to describe how to conform to WCAG 2.0 using those technologies. Use of the techniques provided in this document makes it easier for Web content to demonstrate conformance to WCAG 2.0 success criteria than if these techniques are not used.
Introduction à WAI ARIA (traduction) | Les intégristes
2008
Juicy Studio: Label Positioning
Forms that are laid out vertically with the prompts to the left of the form control have the advantage that the user can quickly scan down the left-hand side to determine what type of information they are required to provide. This is generally the best approach, although not always practical. For example, in languages such as German (emphasis added) where some words are a lot longer than others, it can create a situation where some prompts may be a long way from their associated form control, which obviously has an impact on usability. In these circumstances, positioning the prompt above the form control may be more appropriate.
bloddy German
Label Placement in Forms :: UXmatters
“Excessive distances between some labels and their input fields forced users unnecessarily to take more time to interact visually with the form.”
how form layout performs.
Colour Contrast Check - snook.ca
The Colour Contrast Check Tool allows to specify a foreground and a background colour and determine if they provide enough of a contrast "when viewed by someone having color deficits or when viewed on a black and white screen"
better color checker
G18: Ensuring that a contrast ratio of at least 5:1 exists between text (and images of text) and background behind the text | Techniques for WCAG 2.0
The objective of this technique is to make sure that users can read text that is presented over a background. For Success Criterion 1.4.3, this technique describes the minimum contrast ratio for text that is less than 18 point (if not bold) and less than 14 point (if bold). For Success Criterion 1.4.5, this technique relaxes the 7:1 contrast ratio requirement for text that is at least 18 point (if not bold) or at least 14 point (if bold).
with the formula and advices











