Of the ties you've pictured I'd say the purple one works best. Having said that I think you could do much better. The TM Lewin site is quite good for getting an idea of what ties go with what shirts: http://www.tmlewin.co.uk/productlist...eofwales?pg=10 Have fun at the ball. PS Given it's a "semi-formal ball (?)" could you go tie-less?