I agree they would almost certainly look good with your MacPherson. I have pink long socks from Sock Dreams, and have worn them with Fraser Hunting and Clergy tartans, to positive (and surprised) reactions. Too much folding issues with their length, so have ordered
one of Matt's remaining pairs. Like the first time you went out the door in a kilt, just wearing them a few times will calm any misgivings.

Oh, the surprised part of the reactions has been other people's surprise at how well they liked the look. ".....Michael,....Pink socks? But
.....ya know, that actually looks pretty good. Who'da thunk?" I guess if you have what it takes to be comfortable in a kilt in everyday
wear in the States, you have what it takes to wear pink.