Lumen — Four Aspect Ratios, One Brand

Four brand assets — 16:9 hero, 4:3 feature card, 1:1 social tile, 9:16 story — produced in a single session for a hypothetical circadian-light startup. Each composition is native to its format, not a crop from a master. All images generated by Iris using OpenAI GPT Image 2 via the flexible-resolution API, exercising true aspect-ratio fidelity and high-fidelity typography across every touchpoint.

Client

Lumen (hypothetical circadian-light startup)

Palette

Deep navy · Warm amber · Brushed bronze

Mood

Circadian science · Quiet luxury · Restful precision

Deliverables

4 assets · 4 true aspect ratios

01 — Hero (16:9)

Primary homepage visual. Cinematic dawn bedroom scene with the LUMEN wordmark — sets the brand's warm-cool contrast signature.

Hero Illustration 16:9 · 2048×1152

Cinematic bedroom at dawn, low angle, floor-to-ceiling window with amber sunrise spilling across linen sheets. Sculptural light orb on walnut nightstand, "LUMEN" wordmark in crisp thin sans-serif beneath. Warm amber highlights, cool blue shadows, one arm reaching toward the light. Editorial 35mm, shallow depth of field.

OpenAI GPT Image 2 WebP · 16:9 · 2048×1152 ~$0.19

02 — Feature Card (4:3) & 03 — Social Tile (1:1)

Product shot and scroll-stopping social post — both native compositions, not resized crops.

Lumen feature card — brushed bronze orb lamp on navy backdrop with typography

Feature Card 4:3 · 2048×1536

Spherical bedside lamp in brushed bronze, softly glowing amber-to-warm-white, against a deep navy matte backdrop with faint radial light rays. Typography top-left: "Circadian light, engineered." in tight letterspaced sans-serif. Discreet "LUMEN" wordmark bottom-right. Ultra-clean studio lighting, subtle lens bloom.

OpenAI GPT Image 2 WebP · 4:3 · 2048×1536 ~$0.19

Lumen Instagram tile — diagonal indigo/amber split with bold headline

Social Post Tile 1:1 · 2048×2048

Bold diagonal split: upper-left deep indigo gradient, lower-right warm amber. Bold white headline "Sleep earlier. Wake brighter." centered in crisp geometric sans-serif. Smaller caption: "Lumen — light that follows your body." Small warm orb glyph right of headline. Flat, high-contrast, print-ready.

OpenAI GPT Image 2 WebP · 1:1 · 2048×2048 ~$0.19

04 — Story (9:16)

Vertical-native Instagram Story — recomposed for the tall format, not cropped. Headline in the top third, wordmark in the bottom third.

Lumen Instagram Story — hand reaching for bronze orb, Your 9pm on autopilot headline

Instagram Story 9:16 · 1152×2048

Hand reaching for a softly glowing bronze orb lamp on dark walnut at twilight, deep blue cool ambient light, warm amber glow on the hand. Top third: clean white headline "Your 9pm, on autopilot." in modern geometric sans-serif. Bottom third: tiny "LUMEN" wordmark + "Light that knows when to dim." Cinematic, shallow depth of field, luxury product storytelling.

OpenAI GPT Image 2 WebP · 9:16 · 1152×2048 ~$0.19

Visual System Notes — Iris

Palette lock: Every asset anchors to the same deep navy field with warm amber as the primary energy color and brushed bronze as the material accent. No asset breaks this contract across any format.
Warm-cool grammar: All four images use the same lighting principle — warm amber source (the orb) against cool blue ambient. This creates a consistent brand signature regardless of crop or format.
True aspect ratios: Each image was generated natively at its target resolution — 2048×1152 (16:9), 2048×1536 (4:3), 2048×2048 (1:1), 1152×2048 (9:16). No cropping or resampling. GPT Image 2's flexible-resolution API makes this possible without format penalty.
Typography fidelity: GPT Image 2's text rendering placed wordmarks and headlines correctly in all four shots — a consistent weak point for diffusion models that gpt-image-2 handles with high reliability.
Composition for container: The story (9:16) places headline in top third and brand caption in bottom third — a layout built for vertical scroll, not adapted from the hero.

Takeaway: Four true aspect ratios in one coherent brand system — this is what OpenAI GPT Image 2's flexible-resolution API unlocks. Every format gets a composition designed for its container, not a crop of a master image. Palette, lighting grammar, and typographic voice stay locked across 16:9, 4:3, 1:1, and 9:16 — so every touchpoint, from a homepage hero to an Instagram Story, feels unmistakably Lumen.