I would suggest you wait to get matching hardware. When new, nickel & chrome are brilliant (though slightly different), & may make a better match. However they age very differently, Chrome gets uglier w/ pitting, peeling & rust, whereas Nickel gets grayer, more like the soft look of pewter ( I prefer this look vs aging chrome). So, whether they clash depends on the age of your NOB lugs, & the age of the chrome.
On the other hand, this distinction may not bother you at all, & most probably won't even be noticed by non drummers, & audiences.
Whenever I buy something , I always consider future sales,(you know , things happen in life that bring this about). Matching hardware will help you recover your $$.