Here’s a description for the Facebook 3D logo with a blue and white background:
The Facebook 3D logo features the iconic lowercase f in white, slightly raised, creating a subtle shadow effect that enhances its three-dimensional appearance. The background is a rich, vibrant blue, consistent with Facebook's brand identity. The white f contrasts sharply against the blue, making it stand out boldly. The edges of the logo have smooth, rounded curves, adding to the modern and sleek look. The overall composition gives a sense of depth and professionalism, while maintaining the clean, minimalistic feel Facebook is known for.