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Founded by passionate advocates of learning and innovation, Learni set out to make professional training accessible to everyone, everywhere in the world. Our team works in the largest cities such as Paris, Lyon, Marseille, and internationally, to support talents and organizations in their skills development.
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30 free minutes with a training advisor — no commitment.
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Don't let this gap widen
Sans maîtrise du contrast ratio en accessibilité web, 90 % des sites échouent aux exigences WCAG, excluant 15 % des utilisateurs dont 285 millions de malvoyants dans le monde.
Chaque non-conformité génère en moyenne 20 000 € d’amendes par mise en demeure RGAA en France, plus des coûts de refonte multipliés par 10, atteignant 100 000 € pour un site moyen.
Votre entreprise perd alors parts de marché, réputation et appels d’offres publics, tandis que votre carrière stagne face à des audits impitoyables.
Chaque mois sans compétences solides aggrave ces risques, transformant des projets rentables en passifs coûteux.
The Maîtriser le Contrast Ratio pour l’Accessibilité Web : Exigences, Outils et Bonnes Pratiques training is delivered in-person or remotely (blended-learning, e-learning, virtual classroom, remote in-person). At Learni, a Qualiopi-certified training organization, each program is designed to maximize skills acquisition, regardless of the training mode chosen.
The trainer alternates between demonstrative, interrogative, and active methods (through practical exercises and/or real-world scenarios). This pedagogical approach ensures concrete and directly applicable learning in the workplace.
To ensure the quality of the Maîtriser le Contrast Ratio pour l’Accessibilité Web : Exigences, Outils et Bonnes Pratiques training, Learni provides the following teaching resources:
For in-house training at a location external to Learni, the client ensures and commits to having all necessary teaching materials (IT equipment, internet connection...) for the proper conduct of the training action in accordance with the prerequisites indicated in the communicated training program.
The assessment of skills acquired during the Maîtriser le Contrast Ratio pour l’Accessibilité Web : Exigences, Outils et Bonnes Pratiques training is carried out through:
Learni is committed to the accessibility of its professional training programs. All our training programs are accessible to people with disabilities. Our teams are available to adapt teaching methods to your specific needs. Do not hesitate to contact us for any accommodation request.
Learni training programs are available for inter-company and intra-company settings, both in-person and remote. Registration is possible up to 48 business hours before the start of training. Our programs are eligible for OPCO, Pôle emploi, and FNE-Formation funding. Contact us to discuss your training project and funding possibilities.
Introduction à l’accessibilité digitale et à ses enjeux. Exemples concrets de mauvaises pratiques de contraste et leurs impacts. Définitions fondamentales : contrast ratio, perception visuelle, déficiences visuelles. Tour d’horizon des normes WCAG (Web Content Accessibility Guidelines) et de leurs exigences sur le ratio de contraste pour les textes, UI, icônes et éléments graphiques. Présentation des outils d’audit et de simulation (Color Contrast Analyzer, extension Chrome, simulateurs de daltonisme, Lighthouse).
Cas pratiques : analyse et correction du contraste sur des interfaces réelles, retours sur des audits d’accessibilité, détection et résolution de défauts fréquents. Calculs manuels et automatiques du contrast ratio. Adapter les couleurs du texte, des fonds, des bordures et des composants interactifs. Introduction au design thinking pour l’accessibilité. Intégration du contraste dans un workflow de conception et de développement (maquettes, guides de styles, tests continus).
Target audience
Webdesigners, développeurs front-end, responsables accessibilité et toute personne impliquée dans la création ou la gestion de contenus numériques
Prerequisites
Connaissances de base en HTML et CSS
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