Want to be a well-dressed guest? Jo Haywood shows how black and blue can work for you

Stockists’ informationBoutiko: 0844 884 8511; www.boutiko.co.ukAmethyst: 07918 023826; www.amethystbag.comJacques Vert: 0191 521 3888; www.jacquesvert.co.ukFig Leaves: 08444 932932; www.figleaves.comLunacy: 01639 895735; www.lunacyboutique.co.ukNoli: 0207 580 1288; www.noli.comKookai: www.kookai.co.ukLinea: 0845 602 1073; www.houseoffraser.co.ukDune: www.dune.co.ukBen de Lisi: 08445 616 161; www.debenhams.comFrank Usher: www.frankusher.co.ukFaith: 0845 880 1195; www.faith.co.uk