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duotone.md
1 # Palette: duotone
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3 Two-color limited, poster-like. The constrained palette — only two colors plus a background, used for cultural / cover hero / cinematic poster decks where chromatic discipline carries the page.
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5 > This file describes **color behavior**, not HEX values.
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7 ## 1. Compatible renderings
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9 | Rendering | Notes |
10 |---|---|
11 | ✓✓ screen-print | Direct alignment — duotone is screen-print's signature |
12 | ✓✓ flat | Bold two-color flat |
13 | ✓ vector-illustration | Two-color vector |
14 | ✓ editorial | Two-color editorial spread |
15 | ✓ blueprint | Two-color schematic |
16 | ✓ pixel-art | Limited-color retro |
17 | ✓ chalkboard | Pastel two-color chalk |
18 | ✗ corporate-photo | Photography can't be duotone (unless duotone-graded) |
19 | ✗ sketch-notes / fantasy-animation / nature / watercolor | Wrong temperament |
20 | ✗ digital-dashboard / 3d-isometric | Need more chromatic depth |
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22 ---
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24 ## 2. Fewshot prompt snippets
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26 **Snippet A — applied to a screen-print cover poster**
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28 > [...rendering paragraph...] Color behavior is duotone: deep navy `#1E3A5F` carries the lower 55% as a confident block including the silhouette of a stylized mountain. Burnt orange `#C2410C` carries the upper 45% as the sky, with one small near-white circular sun (under 3%). Only these two colors appear in the composition — no third hue. Halftone dot texture at the horizon between the two color zones. Slight color misregistration adds silkscreen authenticity. [...container guidance...]
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