Purple shampoo is beloved by bleached and blonde-haired heads around the world. Outside of the risk of staining your skin or shower tile, they are a relatively safe way to manage hair color at home.

Walk into any children's clothing store and you'll see it immediately: the great divide. Blues, greens, reds, and blacks flood the boys' section, while pink and purple dominate the girls' area. But is ...

From colour-changing fire trucks to 'The Dress', many optical illusions have baffled the internet over the years. Now, a scientist from Harvard Medical School has discovered an illusion that might be ...

Many of us develop strong attachments to particular colors, but purple brings out the most focused and enthusiastic devotion. What makes purple so distinctive? Part of the answer comes from optics.