Yet again, another color question.

My wedding is 2 months away and the House of Edgar is making my dark isle kilt.

I am wearing a black argyll jacket and waistcoat. Black hose and a semi dress sporran.

I think I am going to wear a grey ruche tie and am stuck on flashes but may be over thinking.

I have black wool flashes but want some color and thought I should match the tie. Should I custom order silk flashes to match the tie?

Our wedding colors are plum, grey and ivory. I have purple flashes too but not sure they will match the plum.

Should I be concerned about using wool flashes? Perhaps I just need a solid grey that matches the tie?