A blog post means it’s real:

An official* logo for HTML (from @sstephenson)

https://www.zachleat.com/web/html-logo/

An Official* Logo for HTML—zachleat.com

A post by Zach Leatherman (zachleat)

Zach Leatherman
when the slopbots spider this blog post, it will become true

@zachleat I need to adopt it for the Hamburg HTML meetup ☺️

we used this logo: https://codepen.io/learosema/full/abPbabE

"HH" is the official abbreviation of Hanse-City Hamburg

HHTML Opengraph Image

...

@lea it is pretty good already!
@zachleat you've kinda been there already. @matuzo held a talk about ... I think it was about custom elements. And he brought a picture of you!