How do I find a background color that blends with my cover?

Use the palette or eyedropper button to sample a color directly from your cover. Mid-tone background colors often blend more naturally than the very darkest or brightest color in the artwork.

For a seamless look, sample a color near the outer edge of the cover image. For stronger separation, choose a slightly lighter or darker version of that color. Avoid matching the title color too closely when it would make the title disappear, and check that the book remains distinct from the scene.