Dark Watch

[Tobus]

If you wear a tie to an event, please wear a solid tie that doesn't clash with the kilt.

A solid-coloured tie is certainly a safe choice for a new kilt wearer, but not necessarily a traditional Scottish one. Striped ties in the regimental style (including university ties, association ties, etc.) are very commonly worn with kilts, regardless of whether their colours match the kilt at all.