Oddbean new post about login | logout A secondary accent color is undoubtedly useful. Currently, I use a very light brown for less important interactions, maybe it has a little too low contrast, we can test something else. But I agree with @hodlbod, no more purple :)
a secondary color, or a mental reference where subliminally certain colors are indicative of an important action or data, a less important but still meaningful action or data, and perhaps just ambiguous color for ancillary, not super important data.