Obsidian Lumina

Obsidian Lumina pairs deep nocturnal slate surfaces (#080c14 and #0d1527) with high-vibrancy electric cyan (#38bdf8), violet-magenta (#c026d3), and emerald (#10b981) data accents. The canvas is organized in an enterprise dashboard structure featuring a persistent 240px sidebar and an expansive analytical workspace. Visual hierarchy is established through luminous neon indicators and high-contrast numerical readouts against charcoal-toned container cards bordered with subtle 1px strokes (#1c283f). Typography relies on a clinical yet modern geometric sans-serif, using generous letter-spacing on sub-labels and bold, unadorned sizing for key metric integers. Spacing is strictly regimented on an 8px base grid, maintaining comfortable 16px to 24px inner padding across cards with rounded radii of 14px. The immediate focal draw is the hero preview graphic, which deploys subtle ambient radial glows to simulate backlit glassmorphic instrumentation.

1 design references

Prompt metadata
Shared by	@Devault
Model	GPT Image 2.5
Category	Web design
Dataset	stretchcloud · awesome-gpt-image-prompt-2.5

The prompt

Design a dark-mode web interface screen: luminous cyber-executive analytics glowing quietly against an obsidian night sky.

LAYOUT
The page architecture follows a fixed two-column hybrid structure: a 240px utility sidebar on the left, flanked by an expansive data canvas. The main canvas stacks horizontally gridded sections starting with an asymmetric welcome banner, an 8-column metric ticker, promotional acquisition cards, analytical charts alongside a top-posts feed, a photo-led promo split, and concluding with a 3-card testimonial deck.

PALETTE (use these exact hex values)
- #080c14 — Obsidian Void: Primary screen canvas background behind the main dashboard viewport
- #0d1527 — Deep Midnight: Background for dashboard cards, sidebar panels, and interactive modules
- #131e35 — Midnight Slate: Secondary surface for nested inputs, inner widgets, and subtle table hover states
- #1c283f — Border Subtle: Refined 1px container perimeter borders and horizontal table dividers
- #38bdf8 — Electric Cyan: Primary CTA button background, key chart spline, and active status indicators
- #c026d3 — Neon Violet: Secondary chart line, floating neon accent glows, and social trend markers
- #10b981 — Emerald Spark: Positive delta trends, success ticks, and health score progress tracks
- #ffffff — Pure White: Primary headings, major numeric values, and high-emphasis button labels
- #94a3b8 — Cool Slate: Descriptive body copy, secondary column values, and inactive navigation links
- #475569 — Muted Cobalt: Tertiary metadata, chart axis ticks, search placeholder text, and star icons

TYPOGRAPHY
Typeface Plus Jakarta Sans (or Inter, DM Sans, General Sans), weights 400/500/600/700. Sizes 11px caption, 12px body-sm, 14px body, 16px body-lg, 20px subheading, 24px heading, 36px display. Tracking -0.02em at headings, 0.02em at uppercase labels. The typographic tone is authoritative, analytical, and pristine, achieved through Plus Jakarta Sans. Its geometric clarity allows large display metrics to read instantly without visual noise, while tight letter-spacing (-0.02em) on headlines conveys executive polish. For open-source parity, Inter or DM Sans serve as direct drop-in alternatives.

GEOMETRY & SPACING
Corner radii — cards 14px, links 6px, inputs 8px, buttons 8px. Spacing on a 8px unit, 16px gaps, 32px between sections, 1440px container, comfortable density.

DEPTH
Depth is rendered flat-yet-layered using 1px stroke borders in #1c283f against deep navy surfaces. True elevation is reserved for interactive states and decorative mockups, achieved through diffuse 40px-60px radial neon glows (cyan and violet) at 15-25% opacity rather than traditional black drop shadows.

IMAGERY
Photography is strictly nocturnal, cinematic, and tech-focused—exemplified by the moody desk shot featuring a glowing laptop display in a darkened studio. Graphic assets utilize glowing 3D vector wireframes and glassmorphic panels with electric gradients. Crisp, minimal duotone line icons are standard.

SIGNATURE DETAIL — the thing that makes this design itself
The signature technique is the 'Nocturnal Prism' effect: deep navy containers accented by atmospheric, blurred radial gradients in cyan and magenta that bleed subtly from behind charts, badges, and hardware mockups, creating an illuminated glass look without breaking data legibility.

MUST
- Use deep dark navy tones (#0d1527) instead of pure neutral blacks (#000000) for container backgrounds.
- Limit electric cyan (#38bdf8) strictly to primary CTAs, active states, and leading metric highlights.
- Add 1px subtle borders (#1c283f) to all card surfaces to maintain separation without heavy shadows.
- Include positive metric indicators in vibrant emerald (#10b981) paired with small directional arrows.

AVOID
- Do not use saturated warm backgrounds; the canvas must remain cold, deep, and obsidian-tinted.
- Do not apply heavy drop shadows; depth must rely on 1px borders and soft radial ambient backlights.
- Do not make buttons pill-shaped (999px); standard CTAs should strictly maintain an 8px radius.
- Never display raw unformatted numbers without clear unit labels or percentage delta tags.

OUTPUT
Render as a clean, pixel-crisp UI design at roughly 1536:3840. Flat vector rendering, real legible text, no browser chrome, no device mockup frame, no watermark, no lorem ipsum placeholder blocks.

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