I like discreet colors for the most part due to working in an office. The color for the endura wave goes great with dark blue, gray, or black pants. I just bought a brown delica to fit with khakis-most of my khakis are a darker color.
My office isn't knife unfriendly which I found surprising but I still work at a university so it wouldn't take a whole lot for someone to stir up a shit storm.
I love my pac salt but I wish I would have gone with black. The yellow isn't a big deal to me as I use it mostly as a running knife in the waistband of my shorts, but the novelty of yellow has diminished.
In fact, I think the diminishing novelty of bright colors is why I am mainly opposed to them.