Royal blue stands out for its intensity and looks particularly striking when paired with grey. Whether it’s a cashmere jumper with a pleated skirt or jeans with an elegant double-face coat, this colour duo works beautifully from casual to dressed-up. The understated grey lets blue take centre stage while making this on-trend shade wonderfully easy to wear. The colour combination works just as well for a more relaxed look. Checks are a major trend this season, giving the pairing a sportier feel. A blue-and-grey checked shirt brings both shades together and looks just as good with grey jeans as it does with blue trousers.