Need proof? Georgia May Jagger and Heidi Klum both swapped try-hard summer styles for this classic, statement-making colour on Tuesday in their simple, scarlet mini dresses.
Jagger, who was at the 'House of Sun' pop-up boutique opening for Sunglasses Hut in Madrid, paired her short style with black and gold sandals - proof that this colour looks best when the outfit, plus the hair and makeup, is kept low-key (a sun tan always helps when wearing this colour too.)
The only accessories you need to wear with the LRD? (That's little red dress.) A chic pair of shades, of course.
Heidi Klum out and about in New York City. Getty Images
We don't blame those passers by for doing a double take either - those sun-kissed supermodel legs could distract anyone.
We've just got one question - how did Heidi survive a day out in New York without carrying a handbag?
LOVE GEORGIA'S LATEST LOOK? See more of the British beauty's effortlessly glamorous wardrobe in her style file below:
Georgia reveals who her biggest style inspiration is in the video below (oh, to have a rockstar dad...)