👉 A duotone is a color combination that can be used to emphasize different elements of a design or image. It involves using two complementary colors in a way that creates a visual effect that enhances the overall message and purpose of the design. Duotones are often used in graphic design, where they are used to create contrast between two contrasting colors or tones. For example, a duotone color scheme could be used to highlight important information on a product label, while also using complementary colors for a