Socks are your chance to be mischievous when wearing a suit. Most people who don't know you very well will never see them, so there's little risk of offending a stranger. I would never wear a square-pattern tie with a suit with this many stripes; the stakes are too high. But here, with colors still coordinated, these socks are about as close as I come to sprezzatura in workwear.
Might I suggest a pair of over-the-calf Pantherella socks in crimson?