It should be a brighter orange closer to what you see on HN's top bar. I've been waffling on the magenta. It works "fine" in low usage. This is the first post where I used it a great deal. I'm gonna be spending some time working with the colors over the weekend, as you're the 5th person to say something to me about it.
It could be worse, however. My last design would flashbang you, even if you used darkreader