A Model for Designing Accessible Color and Contrast for Users with Visual Deficiency and Color Blindness

The present work investigates the problem of creating accessible web content for users with reduced vision and color blindness. The aim of the work is to present a model for the design and evaluation of web content with accessible color and contrast for visually impaired people. Such a model was built as part of the process of updating the web pages of Plovdiv University. It consists of the components: selection of web elements; accessibility standards and criteria; verification and validation tools; design and implementation technologies; identification of situations of dynamic change of web content; accessibility development artifacts; application approach. Its function is to reveal the perspective in gathering requirements and compiling a color and contrast specification