My guess is that your comment is satire, but you should be aware that 'accessible' doesn't just mean 'accessible to blind people' - among other issues, some people have reduced motor function, others can't see contrast as well as the typical human eye.

WCAG is, from what I can tell, a reasonably good starting point and even attempting to do _some_ things and being generally aware is better than not doing anything at all. Give the guidelines a read, https://www.w3.org/WAI/standards-guidelines/wcag/