Sometimes, your best professional relationships are forged with those who operate completely antithetically to you.

In the spirit of opposites attracting in the office, we bring you a huge trend from both the spring and fall runways: black and white. Not in small part inspired by Kaiser Karl’s debut collection for Karl by Karl Lagerfeld, designers across the board offered up variations of the combination in graphic prints, knits, and more classic color blocks. Without a doubt, it’s a foolproof duo that brings unmatched, effortless elegance to your professional wardrobe to last you for seasons to come.

1. DKNY stretch-silk and stretch-wool jumpsuit ($425), 2. Dolce & Gabbana brass and glass crystal cameo clip earrings ($68), 3. Boy By Band Of Outsiders sleeveless cotton and linen blend jacket ($770), 4. Helmut Lang printed jersey maxi skirt ($185), 5. Chanel vintage CC bag ($3510), 6. www.romwe.com Metal embellished Black-White shoes ($160), 7. 3.1 Phillip Lim 31 Hour two-tone leather tote ($775), 8. Topshop crop jumper ($140), 9. Zero+MariaCornejo Isis printed stretch-twill skirt ($550), 10. Vionnet silk printed tulip skirt ($410), 11. Reiss Fenella jersey dress ($265), 12. Fiona Paxton Salma cuff ($215), 13. Aubin and Wills Buckholme double breasted stripe jersey blazer ($320), 14. Debenhams gold leopard ring ($13), 15. Dorothy Perkins border print dress ($69), 16. DVF skinny Naples trouser ($175), 17. Roberto Cavalli printed cotton and silk-blend shirt ($300), 18. Manolo Blahnik Galop black and white canvas pump ($775), 19. Milly d’Orsay floral lace jacket ($375), 20. Karl by Karl Lagerfeld Jane blazer ($312), 21. Topshop Square Spike necklace ($55), 22. Irregular Choice Botoxic black and white wedge ($180), 23. JW Anderson cigarette trousers ($682), 24. www.romwe.com Mitch Head ring ($13), 25. Karen Millen color block satchel ($140), 26. Deepa Gurnani feather necklace ($355), 27. Stella McCartney bib blouse ($300)

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Leena Sanzgiri is living the Levo League mission of going after your passion project. After years of management consulting, she is now pursuing her lifelong love of fashion professionally by directing content for Levo Style, working as an editor for www.oliviapalermo.com, and contributing as a fashion writer to L-atitude’s blog. Connect with her on twitter (@leenasanzgiri) to share your photos, thoughts, and/or queries about personal style for your days on and off.