Affiche et typographie

FLUX 3 YouTube thumbnail prompt

A thumbnail-background brief for FLUX 3 built around hard light, reserved title space and detail that survives being shrunk.

Publié le August 21, 2026

Aperçu

Aucun exemple rendu n’est encore publié

Nous ne publions que des images réellement générées à partir du prompt affiché sur la page. Tant que celle-ci n’a pas été rendue et vérifiée, c’est le brief lui-même qui est exposé.

Le prompt complet

1High-impact video thumbnail background for a workshop about restoring old cameras. A single disassembled rangefinder camera on a dark walnut bench, 2body left of centre, lens elements and springs laid out in a neat row beside it. 3Hard directional key light from the upper right creating strong edge definition, 4deep shadows kept open enough to read on a phone, 5one saturated cyan practical glowing behind the bench for separation. Very high local contrast, punchy but not clipped, 6subject occupying the left 60 percent with the right side deliberately simple for a title overlay. Clean composition, no clutter, 7no small details that vanish at thumbnail size. 8No text, no arrows, no faces, no logos, no watermark.

Utiliser ce prompt

Ouvre le générateur avec le prompt et le format d’image déjà renseignés.

Les prompts restent en anglais pour être copiés tels quels dans le générateur ; si vous les réécrivez, l’anglais reste recommandé.

Structure du prompt

Chaque segment ci-dessous apparaît mot pour mot dans le prompt ci-dessus et pilote une seule chose. Mélangez-les, remplacez-les ou supprimez-les pour composer votre propre version.

  1. 01

    High-impact video thumbnail background

    Background is the operative word. The thumbnail is finished in a design tool, so what you want from the generator is the plate underneath it.

  2. 02

    body left of centre, lens elements and springs laid out in a neat row

    Thumbnails are read in under a second. One subject with one obvious arrangement beats a rich scene every time.

  3. 03

    Hard directional key light from the upper right creating strong edge definition

    Soft light disappears at small sizes. Hard light gives edges that survive being 320 pixels wide in a feed.

  4. 04

    deep shadows kept open enough to read on a phone

    A constraint tied to the actual viewing device. Crushed blacks look great on a monitor and turn into a smudge on a phone in daylight.

  5. 05

    one saturated cyan practical glowing behind the bench for separation

    A colour accent that also does a structural job — it separates the subject from the background instead of merely decorating.

  6. 06

    subject occupying the left 60 percent with the right side deliberately simple

    Reserve the title space in the image rather than covering good pixels with a text box later.

  7. 07

    no small details that vanish at thumbnail size

    A direct instruction about the delivery size. Detail that cannot survive the crop is worse than no detail — it becomes noise.

  8. 08

    No text, no arrows, no faces, no logos

    Generated arrows and text in thumbnails look like clip art. Add those in the editor where you control them.

Questions sur ce prompt

Should I generate the thumbnail text as well?

No. Thumbnail text needs a specific typeface, a specific size and often a stroke or shadow to stay legible. Generate the background and set the type in a design tool.

Why does the prompt avoid faces?

Faces are the strongest element in any thumbnail, so most creators composite their own. If you do want a face, use the portrait or headshot brief and combine the two images.

How do I check it will work at small size?

Shrink the result to about 320 pixels wide and look at it on a phone. If the subject is still instantly readable and the right side is still clean, it works.

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