Low-contrast text may be trendy, but it is also illegible, undiscoverable, and inaccessible. Instead, consider more usable alternatives.
Don’t fall for the overly “minimalist” design trends. Don’t assume big names like Apple and Microsoft always do it right. What works for them doesn’t necessarily work for you. Low contrast text doesn’t work for anybody. It’s just plain and simple.
As with any trend, it’s important to understand the reasons behind it, and always question whether or not it makes sense for your site. Most websites don’t have the luxury of a household name and an army of loyal brand followers that are willing to endure a frustrating user experience. Instead of adopting low-contrast designs, consider other ways to alter the prominence of elements on the screen, without harming usability or accessibility.