Duotone effect creates an atmosphere of style and brings in a strong vibe for the brand. Duotones are not about using two colours that are contrasting to each other, it’s mainly about powerful, beautiful, oversaturated hues that are almost fluorescent. In recent years web designers have started using duotones for aesthetic reasons. What was once something that was done out of necessity, is now done because it looks cool. So in this post we’ve gathered 25 examples of websites that use duotone effect to give images and videos a sensual and expressive feel.