I think these gorgeous shoes are just low enough (3.5 inches/90mm) to be comfortable and easily bright enough to bring a bit of spirit to any outfit. I could see them rocking with a black,brown or navy suit in the winter, or bringing a bit of colour to a linen outfit in the summer. Pairing them with green, turqouise or orange would make all the colours pop in your outfit.
£370 from Net A Porter.
These Apple pie polka dot shoes from Irregular Choice are very cute and would work equally well the suggestions above.
£49 from Irregular Choice.