The only two colors in the tie are yellow and blue. With my supply of pocket squares, the pocket squares playing off the yellow in the tie, rather than the blue, would most likely overpower the fit, or at the very least be too matchy-matchy, hence my playing the PS against the blue of the shirt and the tie - but your niggle is duly recognized .
Friday, and not a moment too soon . . .Suit - Paul Stuart/Phineas ColeShirt - TyrwhittTie - BBBraces - Paul StuartCufflinks - Penhaligon'sPS - AshearShoes - Bexley [[SPOILER]] Crusty Crouch 2.0 - not as authoritative as when wearing a waistcoat [[SPOILER]]