French blue shirt with green kilt is not going to work for everyone everywhere either. In certain parts of the deep south it would be immediately assumed I was running a house of ill repute on the outskirts of town.

In interior Alaska, for six months of the year outdoor color falls into three categories: 1> white 2> grey and 3> manmade.

This is perfectly reasonable visual interest up here, it worked well in Bermuda when I took the trouble to get my tie length correct and would work, I think, in much of metropolitan California.

Scotland not so much, but it doesn't break any of the written rules.