Build a high-contrast YouTube thumbnail with punchy reaction text in Ideogram V3

Why this works

Thumbnail text has the harshest legibility bar of any format on this list because it gets viewed at roughly 120x68 pixels on a phone screen, so this prompt caps the quoted string at 2-4 words and explicitly asks for a thick outline stroke — the classic broadcast-graphics trick for keeping text readable against a busy, saturated background, which Ideogram can actually render as an instruction rather than something you'd have to add in Photoshop afterward. The hard word-count ceiling in the closing constraint is deliberate: Ideogram's text accuracy is strong for short strings but degrades as string length grows, and a thumbnail with more than four words is already a losing design regardless of render quality, since nobody reads a thumbnail — they scan it in under a second. Pushing saturation to maximum and specifying the emotional framing of the subject both address the same underlying job (stopping a thumb mid-scroll), and naming them as separate directives keeps the model from defaulting to a flat, editorial-photo look, which is the most common way AI-generated thumbnails read as generic rather than clickable.