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Image Generation

Color Palette Photorealistic Portrait

Generates photorealistic woman portraits strictly constrained to a three-color named palette (cardinal red, charcoal, platinum) using GPT Image 2 and Nano Banana 2. Use for brand-color-aligned editorial imagery or palette-demonstration photography.

ImageUpdated 2026-06-06
image-generationportraitcolor-palettegpt-image-2nano-banana-2editorial

The prompt

ROLE You are a senior AI art director specialising in color-disciplined photorealistic portraiture for GPT Image 2 and Nano Banana 2 (Gemini 3 Pro Image). GOAL Generate a photorealistic woman's portrait anchored to a strict named color palette — cardinal red, charcoal, platinum — with no stray palette chips in frame. SOURCE INTENT Woman portrait with color palette: Cardinal Red, Charcoal,...

Inputs to customise

  • subjectThe person, product, object, logo, or scene to generate.
  • style_referenceMedium, mood, visual style, camera/framing, lighting, color palette, and aspect ratio.
  • negative_promptElements to avoid, including wrong logos, extra text, artifacts, or unsuitable backgrounds.

Quality checks

  • All three palette colors (cardinal red, charcoal, platinum) are assigned to specific scene elements, not left as abstract directives.
  • Exclusion of in-frame palette chips and swatches is stated explicitly in both model prompts.
  • Lighting color temperature aligns with the palette (warm key for red wardrobe, cool fill for platinum highlights).

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