Tests accessibilité
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Check My Colours - Analyse the color contrast of your web pages
It is a tool for checking foreground and background color combinations of all DOM elements and determining if they provide sufficient contrast when viewed by someone having color deficits . (L1+.05) / (L2+.05) where L is luminosity and is defined as .2126*R + .7152*G + .0722B using linearised R, G, and B values. Linearised R (for example) = (R/FS)^2.2 where FS is full scale value (255 for 8 bit color channels). L1 is the higher value (of text or background) and L2 is the lower value. Text or diagrams and their background must have a luminosity contrast ratio of at least 4.5:1 for level 2 conformance to guideline 1.4, and at least 7:1 for level 3 conformance to guideline 1.4.
Outils pour évaluer et améliorer l'accessibilité d'un site Web -
Cette extension Firefox est tout spécialement conçue pour tester l'accessibilité d'un site. Vous pouvez isoler et lister différents éléments HTML comme les titres, les listes, les liens, les images, leurs alternatives et leurs longues descriptions, les abréviations, ... Un inspecteur de tableaux de données permet de vérifier les résumés, les titres et les liaisons entre les cellules et leurs entêtes.Accessibilité : 12 outils pour évaluer un site | Web Intention
Evaluer l’accessibilité d’un site n’est pas chose aisée. Les référentiels ( WCAG 2.0 , RGAA 2.2 ou encore Accessiweb 2.0 ) existent bien mais qu’en est-il des outils pour faciliter l’évaluation ? L’offre est assez disparate en ce qui concerne les outils gratuits et/ou open-source.
ACTF - aDesigner
aDesigner is a disability simulator that helps designers ensure that their content and applications are accessible and usable by the visually impaired. Voice browsers and screen readers read aloud the text on Web pages and are used by visually impaired people. However, these devices are less effective with certain kinds of content, such as highly graphical material. Web developers can use aDesigner to test the accessibility and usability of Web pages for low-vision and blind people.
WAVE - Web Accessibility Evaluation Tool
WAVE is a free web accessibility evaluation tool provided by WebAIM . It is used to aid humans in the web accessibility evaluation process. Rather than providing a complex technical report, WAVE shows the original web page with embedded icons and indicators that reveal the accessibility of that page.
