H1 through H6 Elements
Web accessibility is access to web content people by with disabiliteis
There are many different types of content, forms, tables, content that uses color, etc.
Color and Contrast
Color and contrast are important for users that have visual impairments
When color alone is used to convey information without text users who cannot perceive color.
Implementation techniques are listed here.
Evaluation techniques are listed here.
Expected Results are listed here.