The ideal Tumblr banner size is 3000 x 1055 pixels, which ensures your header image looks sharp and well-proportioned across all screen sizes. This wide and narrow format is designed to accommodate various devices, especially large desktop monitors, without cropping important parts of the image. When designing your banner, keep the key visual elements centered, as the sides may get trimmed depending on the viewer's screen resolution. Using high-resolution images (at least 72 DPI) and maintaining a clean, visually appealing aesthetic will help your Tumblr blog stand out and make a strong first impression.
