Dark Blue 3D Sphere Background For Google Slides With A Glowing Orb

This background is for a slide that wants a single, striking focal point instead of a busy scene. A smooth, glowing dark blue 3D sphere sits just off-center against a gradient that deepens to black at the top and lightens to a richer blue toward the bottom. Free, HD, and watermark-free for Google Slides or PowerPoint.

What This Dark Blue Sphere Background Looks Like

The sphere itself reads almost like a small moon or planet, dark and matte on its shadowed left edge, catching a soft, cool blue highlight along its right curve where the implied light source hits it.

Behind it, the background itself is a vertical gradient, near black at the very top, easing into a deeper, glowing blue lower in the frame, so the sphere never feels like it’s floating on a flat color.

Where This Background Fits

This suits tech, science, and space-themed presentations, product reveal slides, night-mode app decks, or any title screen that wants a calm, futuristic feel built around one simple shape.

Design Choices Behind This Glowing Sphere

I kept the sphere as the only object in the frame on purpose. A single, well-lit 3D shape reads as intentional and confident, while adding more elements around it would have diluted the effect and cluttered what’s meant to be a very quiet composition.

Positioning the sphere slightly off-center rather than dead middle gives the layout somewhere for a title to sit without directly overlapping the shape. The soft directional light on the sphere’s edge is also doing real work, since it’s what keeps a plain circle from reading as a flat, cut-out shape.

How to Apply This Background in PowerPoint

• Download and unzip the file, then open your PowerPoint presentation.
• Go to the Design tab and click Format Background.
• Choose Picture or texture fill, then Insert picture from a file, and select the downloaded image.
• Click Apply to All to use it across the whole deck, or leave it on a single slide.

How to Apply This Background in Google Slides

• Open your presentation and go to Slide, then Change background.
• Click Choose image and upload the downloaded file.
• Click Done to apply it to the current slide.
• To apply it across every slide, make the change from the master theme instead.

Legibility Tip for This Background

Place your title in the open space beside or above the sphere rather than over it. White or pale blue text reads cleanly against the dark background at any point in the frame.

FAQ

Is this dark blue sphere background free? Yes, it’s a free download with no watermark and no attribution required.

Does it work in PowerPoint too? Yes, it’s a standard image file, so it applies the same way in both Google Slides and PowerPoint.

What resolution is the file? It’s full HD at 1920×1080, so it stays sharp on any screen or projector.

Can I use this as a wallpaper? Yes, the calm, dark composition works well as a desktop background too.

Features at a Glance

• Free HD 1920×1080 download, no watermark
• Single glowing 3D sphere in dark navy blue
• Black-to-blue vertical gradient backdrop
• Soft directional highlight for real dimension
• Works in PowerPoint, Google Slides, and as a wallpaper
• Calm, futuristic mood suited to tech and space-themed decks

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