Both of these colors are muted violet reds. Naphthamide Maroon (PR171) is slightly more reddish while Perylene Violet (PV29) is slightly more violet, though they’re nearly indistinguishable.
perylene violet
Dark Magenta Part II: Carbazole Violet, Perylene Violet, and Bordeaux
After swapping out options for a dark magenta last week, I found that I had stuck too close to home and chosen colors too similar to my primary magenta. So, today, I’m comparing my favorite of those options – Bordeaux (PV32) – with two strikingly dark purple colors: Perylene Violet (PV29) and Carbazole Violet (PV23).