Duotone Image Effect: Create Spotify-Style Two-Color Images
The duotone effect maps an image to two colors for a bold, graphic look. How to create duotone images in CSS, Canvas, and Photoshop.
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Tags: image, effects, design
Duotone Photo Effect: Create Two-Color Images Online Duotone is the technique of replacing the shadows and highlights of an image with two distinct colors, creating a graphic, stylized look. Popularized by Spotify's marketing in the mid-2010s, it has become a mainstay of contemporary digital design — appearing on album covers, landing pages, editorial headers, and presentation templates. This guide explains what duotone actually is at the pixel level, how to achieve it using CSS blend modes, and how to implement it from scratch using the Canvas API. What Is Duotone? A true duotone image has only two colors. Rather than a continuous spectrum, shadows are tinted with one color (often dark: navy, black, deep purple) and highlights are tinted with another (often bright: yellow, cyan, coral).…
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