Blog header prompts

Technical blogs often ship with no image or the same stock photo of a laptop. These prompts give each post a distinct, calm header made with Raphael AI — a free AI image generator at https://raphael.app.

House style

• Wide 16:9 composition with empty space on one side for the title.
• Abstract or object-based, never fake screenshots.
• Muted palette: slate, sand, sage, one accent colour per post.
• No generated text, no logos.

Mapping topics to images

Post topic	Prompt idea
Caching	stacked translucent glass blocks catching light, slate background, minimal
Database migrations	flock of paper boats moving between two shelves, sage and sand
Security review	old brass key on a blueprint, soft top light, shallow depth
Performance	long-exposure light trail along a mountain road at dusk
Refactoring	hands re-arranging wooden blocks into a neater tower, overhead

Paste the idea into Raphael AI, add “wide composition, empty left third, no text”, and generate.

Why bother

Social previews with a unique image get noticeably more clicks than text-only cards, and a consistent house style makes an archive page look cared-for.

Header images generated with Raphael AI — https://raphael.app