I always (and only) use named colours for debugging. For example border: 1px solid red; around some element that isn't rendering as expected. This makes it har

I always (and only) use named colours for debugging. For example border: 1px solid red; around some element that isn't rendering as expected. This makes it hard to accidentally forget about a rules that just just put in temporarily. Real colours will always match some design, which will have a carefully-chosen hexcode.