You can wear pink in a kodona outfit if you do not want to go all the way into being a brolita, like this:
But if you want to go all out, you can actually try brolita, which is just a male in Lolita clothing, like this:
But you said you wanted subtlety so I would stick on the side of “kawaii kodona”. You can use pink but also stockings, frilly shirts/shorts, hair accessories and bows.
This blog [kodona-tips-and-confessions] is awesome for tips. You can’t really message them anymore because I think the blog is inactive, but you can scroll through the posts that are already there!
// text photo and collage photos thanks to @spelendora //