Yum - violet - a color of great mystery - often confused with purple ...
You were probably right, Brian.
I just plugged my screen RGB values into Bruce Lindbloom's calculator and the dominant wavelength came out negative ...
... which means that the color on my screen is on the CIE "line of purples" i.e. it is not violet.
Kind of like "if it looks like a duck ..." LOL.
Four years ago, I put this up, "seeking violet", over on DPR:
https://www.dpreview.com/forums/post/53903471
Quite a lot of responses ...