The Blend Mode Tester tool is designed for designers, front-end developers, and UI/UX professionals who want to experiment with CSS blend modes, colors, and transparency effects in real time. To get started, select a background color and a foreground color using the color picker or hex input fields. You can adjust opacity, brightness, saturation, hue, and transparency levels to see how different layers interact. This allows you to preview combinations like multiply, screen, overlay, darken, lighten, color-dodge, color-burn, and soft-light, making it easier to choose the perfect effect for web design, photo editing, or creative UI projects.

Next, pick a blend mode from the dropdown list and preview the result instantly. You can also toggle preview options such as showing individual layers, enabling a grid overlay, or displaying detailed color information (hex, RGB, HSL). With shape and size controls, test effects on squares, circles, rectangles, and full previews to simulate real-world design use cases. This tool is particularly helpful for creating image overlays, background effects, gradient mixing, poster designs, and modern website UI styling.

Once you’ve found the right effect, click Copy CSS or explore the generated HTML, CSS, and React code snippets in the output section. You can quickly integrate them into your web projects, CSS frameworks (Bootstrap, Tailwind), or React components. Designers can also explore the common use case examples such as text overlays, background blending, and vibrant color effects to inspire creativity. By using this tool, you save time, enhance workflow efficiency, prototyping, design system consistency, and cross-browser compatibility while achieving visually stunning results.