Retail stores may be showcasing brightly colored "Resort" merchandise, but those of us not jetting off to our timeshare in Antibes feel we're resigned to our mostly-black winter 'uniform' (and getting pretty sick of it). But you don't have to be in the south of France for an excuse to dig your white jeans out from storage- pairing them with functional (read: warm) pieces in neutrals and soft pastels (see below to shop) creates a fresh look that also makes sense to wear in January (at least in California).
For additional warmth, add a base layer chambray shirt, a scarf, and neutral booties.