According to Ford, the right time is really anytime. It is, of course, easier to include accessibility considerations before a site is launched than to retrofit things later on. But whether you’re developing a brand new site, migrating a website to a new domain or CMS, or simply aiming to improve an existing site, the sooner you can get started, the better. Be especially aware of accessibility issues that may crop up in conjunction with a rebrand, when new color contrast issues are particularly likely to appear.