Onyx is one of the most expressive and luxurious natural stones in the world. Unlike other materials with predictable tones, onyx reveals a surprising palette shaped by minerals, light, and time itself. Its translucency and dramatic veining transform it from stone into art, making it a favorite among designers and homeowners seeking exclusivity.
But what color is onyx, really? The answer is far more diverse than most people expect. Let’s explore its unique variations, what influences its appearance, and how it’s used in high-end projects.

What Is Onyx?
Onyx is a banded natural stone that forms over thousands of years through the layering of minerals inside caves and cavities. What makes it truly unique is its semi-translucent quality, allowing light to pass through and creating breathtaking effects when backlit.
While granite and quartzite are chosen for resilience, onyx is selected for aesthetic impact — a statement material reserved for feature spaces where beauty matters as much as function.
The Most Striking Colors of Onyx
Black Onyx
Deep and powerful, black onyx often features white or gray veining. It conveys sophistication and drama, making it a popular choice for luxury kitchens, bold feature walls, and statement furniture pieces.
White Onyx
Pure and luminous, white onyx ranges from bright snow-white to soft cream. When backlit, it glows with elegance. Ideal for modern minimalist interiors, spa-inspired bathrooms, and high-end lighting design.
Green Onyx
From mint to jade, green onyx balances freshness with warmth. Its reddish or brown veining adds natural character. Perfect for bathrooms, wellness spaces, and decorative panels.
Sardonyx (Red and Brown Onyx)
Layered in rich reds, browns, and whites, sardonyx radiates warmth and personality. A favorite for rustic interiors, classic designs, and cozy hospitality environments.
Rare Varieties: Blue, Yellow, and Pink Onyx
These rare colors are highly prized by designers and collectors:
Blue onyx → serene, artistic, perfect for bars or exclusive lounges.
Yellow onyx → golden tones that elevate reception desks and accent walls.
Pink onyx → soft, romantic, ideal for boutique spaces and luxury bathrooms.
Ivory, Aura, and Visa Onyx
Exclusive variations like Ivory Onyx, Aura Onyx, and Visa Onyx add depth and character to our premium collection.
Looking for onyx slabs in Phoenix? Explore our Onyx Collection and find the perfect stone for your project.
What Influences the Color of Onyx?
Mineral content → Iron adds reds and browns, carbon deepens blacks, and trace minerals create greens, yellows, and blues.
Geological conditions → Pressure and time intensify each band, creating layered patterns unique to every slab.
Light interaction → Because onyx is translucent, its look changes dramatically under natural light or when backlit — making it one of the most dynamic stones in interior design.
Onyx in Interior Design
Due to its delicate structure, onyx is not ideal for heavy-use kitchen countertops. Instead, it shines in low-traffic, high-impact spaces where artistry is key:
Backlit feature walls that transform spaces into galleries.
Powder room vanities that serve as bold design statements.
Bar fronts and reception counters that glow with elegance.
Decorative niches and panels that blend architecture with atmosphere.
FAQ about Onyx
Onyx is more delicate than quartzite or granite, making it best for feature walls, vanities, and low-traffic areas rather than heavy-use kitchens.
Because of its translucence, onyx creates breathtaking effects when backlit, turning walls and panels into works of art.
Onyx is available in black, white, green, red/brown (sardonyx), and rare varieties like blue, yellow, and pink — each unique.
Conclusion: Onyx Is More Than a Stone — It’s a Signature of Style
Onyx is more than a stone — it’s a statement. With its wide spectrum of colors, natural translucence, and unmatched rarity, onyx countertops, feature walls, and accents bring drama and elegance to any interior. Whether you choose the deep sophistication of black, the luminous glow of green, or the rare beauty of pink, every slab of onyx is a one-of-a-kind masterpiece.
At Bolder Image Stone, every onyx slab is handpicked by the owner and graded A-quality to ensure exceptional strength, consistency, and visual appeal. We proudly serve Phoenix homeowners, designers, and contractors with premium onyx collections, free Valley-wide delivery, bilingual support, and over 1,000 five-star reviews.
Ready to transform your project with the rare beauty of Onyx? Visit our Phoenix showroom or contact us today to explore our exclusive onyx collection.