Accessible toggle

Question

We are redesigning our website and there are some concerns internally that accessibility affects the design element. A toggle mode was suggested. Our standard version would

Answer 1

WCAG 2.0 allows a conforming alternate version (under some conditions):

For Level A conformance (the minimum level of conformance), the Web page satisfies all the Level A Success Criteria, or a conforming alternate version is provided.

However, if you intend to use the inaccessible page by default and provide a link to the accessible page, then you’d need to make sure that this link is accessible. Which would mean in your case that the link has a conforming contrast ratio and size.