Stone Color Matching
with Delta-E Precision
The same scientific standard paint manufacturers use. Now for natural stone.
Your team spends two hours comparing slabs under warehouse lighting. Even experienced eyes miss subtle variations. The Spectral Engine analyzes 50,000+ data points in five seconds with 99.9% accuracy.
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Accuracy
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Analysis
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Slabs Indexed
Color Mismatch Costs Quarries EUR 200,000+ Annually
A single mismatched pair in a kitchen installation means full replacement cost plus 2-3 week project delays. Your reputation suffers. Your margins erode. And the problem compounds across hundreds of orders per year.
27%
of returns due to color
2-3 hrs
manual comparison time
See Spectral Analysis in Action
Watch the Spectral Engine analyze a marble slab and find matches across the entire inventory in real-time.
Key Capabilities
Scientific color analysis that eliminates subjective judgment and human error from your matching process.
Delta-E Color Matching
The same CIE Lab color space standard used by automotive paint manufacturers. Measure color difference with scientific precision down to Delta-E < 1.0 (imperceptible to the human eye).
99.9% Accuracy in 5 Seconds
What takes your team two hours of manual comparison under inconsistent warehouse lighting happens automatically. The Spectral Engine processes 50,000+ data points per slab.
Match Against Entire Inventory
Search across your complete slab database instantly. Find perfect bookmatches, vein continuity pairs, and color-compatible groups for large installations.
Client-Facing Search Portal
Let architects and designers search your inventory by color. Upload a reference image, find matching stone. Self-service discovery at scale, 24/7.
The Science Behind the Match
Spectral Capture
High-resolution imaging captures the full visible spectrum (380-780nm) of each slab surface, recording color data at 50,000+ points.
Delta-E Analysis
Color difference calculated using CIE Lab color space and the CIEDE2000 algorithm—the same standard used by automotive paint manufacturers.
Instant Results
AI ranks matches by spectral similarity with confidence scores. Top candidates highlighted automatically for human review.
Traditional vs. Spectral Engine
Traditional Method
- 2+ hours of manual comparison per order
- Subjective lighting conditions in warehouse
- Human fatigue affects accuracy by end of day
- Inconsistent results between team members
- Limited to slabs physically nearby
- No documentation of matching criteria
Spectral Engine
- 5-second automated analysis per slab
- Calibrated, consistent lighting conditions
- Scientific precision every time, 24/7
- 99.9% accuracy guaranteed
- Search entire inventory instantly
- Full audit trail with Delta-E scores
Built on Industry Standards
The Spectral Engine uses the same color science standards trusted by automotive, paint, and textile industries for over 40 years. CIEDE2000 is the most accurate color difference formula available.
Color Space
CIE Lab (L*a*b*)
Algorithm
CIEDE2000
Spectral Range
380-780nm
Accuracy Threshold
Delta-E < 1.0
Processing Speed
5 seconds/slab
Supported Formats
JPEG, PNG, WebP, RAW
“We reduced color-related returns by 94% in the first quarter. The Spectral Engine paid for itself in the first month.”
Marco Bianchi
Operations Director, Italian Marble Quarry
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Quarries
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Slabs Analyzed
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Accuracy
Frequently Asked Questions
Delta-E (ΔE) is the standard metric for measuring the difference between two colors in the CIE Lab color space. A Delta-E of 1.0 is the smallest color difference the human eye can detect. Our Spectral Engine achieves Delta-E < 1.0, meaning matches are perceptually identical.
Natural stone presents unique challenges due to veining patterns and color variation. Our algorithm analyzes 50,000+ data points per slab, accounting for dominant hue, vein characteristics, and overall color distribution. This achieves 99.9% accuracy for color matching, even across different stone varieties.
Yes. The Client Portal allows architects, designers, and fabricators to upload a reference image (from a material sample, existing installation, or design rendering) and instantly find matching slabs in your inventory. This self-service capability operates 24/7.
Full spectral analysis completes in approximately 5 seconds per slab. For a typical inventory of 5,000 slabs, complete re-indexing takes under 7 hours and can run overnight. Real-time matching queries return results in under 1 second.
The Spectral Engine is calibrated for marble, granite, quartzite, onyx, travertine, and limestone. Each stone type has specific algorithms optimized for its unique characteristics, including vein pattern recognition and surface texture analysis.
Stop guessing. Start matching.
See how the Spectral Engine can eliminate color mismatch from your operation. Personalized demo with your own inventory data.