Vibrant colours will add contrast when paired with dark tresses. Frames with tones of plum and maroon bring out blue and green eyes and Celtic skin tones, whilst the olive skinned can work metallics with panache. For a sporty and masculine wardrobe, team with metal framework and mirrored lenses for a subtle finish, or for those with more of an ostentatious taste, neon brights and urban graphics will contrast with dark horses.

THE RULES

• Dark hair and metallic framework screams effortless sophistication, whatever the framework...

• Rich and regal tones of purples hit the sartorial nail on the head for Celtic skinned brunettes.

• Go for sporty, masculine frame work for an unusual mix that's suits dark colouring with striking results.

• Dark skinned brunettes should play with neon brights with zesty yellows being bang on- trend this coming season. Go on, show your dark side.

• Oversized visors with amber lenses are a definite winner for the olive skinned and lend themselves to the transeasonal wardrobe.

• Girls, go for all that glitters with sparkling acetates that'll contrast beautifully with a dark and glossy barnet.

• Guys, stand-out graphics on a sporty framework for those who are into their sport will put you streets ahead of the competition, whether you take-part or spectate.