The Complete Beginner’s Guide to Onyx Countertop Colors

onyx countertop colors

Welcome to our comprehensive beginner’s guide to onyx countertop colors. Onyx, a semi-precious stone with a rich array of colors and patterns, has become a favored choice for countertops in modern homes.

It’s not only about its eye-catching appearance but also its durability and heat-resistance, making it a practical selection.

However, choosing the right onyx countertop color can dramatically influence your kitchen’s aesthetic and ambiance.

The color selection plays a pivotal role in harmonizing the kitchen design, shaping the space’s mood, and reflecting your personality and style.

This guide will help you navigate the options and make the best choice for your home. We’re here to assist you in understanding the importance of color, the variety of onyx options, and how to select the perfect onyx countertop color to enhance your kitchen’s design.

Understanding Onyx Countertops

What is Onyx?

Geological Formation

As a geology enthusiast, I am always intrigued by the formation process of onyx. Onyx is a type of chalcedony, a form of quartz.

It’s formed when water dissolves existing limestone, and this mixture then re-hardens into stone again.

Like an artist needs time to craft a masterpiece, onyx also needs substantial periods to develop its unique band pattern.

Unique Characteristics

One of the first things I noticed when encountering Onyx was its translucent quality.

This fantastic ability allows light to pass through it, making it an exceptional choice for backlit applications.

The myriad colors and patterns displayed by onyx slabs are unparalleled, making each piece a work of art.

Pros and Cons of Using Onyx for Countertops

1. Advantages

  • When I decided to install onyx countertops in my kitchen, I was drawn by their natural beauty.
  • They indeed make a luxurious statement.
  • An onyx countertop’s sheer elegance and depth can transform a kitchen into a visually stunning space.
  • Not to forget, it’s heat-resistant, which was a bonus for me as I love cooking.

2. Limitations

  • However, as much as I love my onyx countertop, it’s essential to be aware of its limitations.
  • Onyx is softer and less durable than other countertop options like granite or quartz.
  • It requires regular sealing to prevent staining; harsh chemicals can damage it.
  • I once spilled vinegar on my countertop and learned the hard way about its susceptibility to acidic substances!

The Significance of Color Choice

In the aesthetic decision-making process for kitchen renovations, the choice of countertop color plays a remarkably influential role.

We often underestimate the power of color, but it truly sets the stage for the entire space.

How Countertop Colors Affect the Overall Aesthetic

When selecting the color for my onyx countertop, I was struck by the variety of hues available.

I chose a stunning green onyx, which completely transformed my kitchen’s look.

The color added a sense of depth and richness missing from my old, plain countertops.

Each time I walk into my kitchen, I’m greeted by this vibrant color that instantly uplifts my mood.

Harmonizing with Kitchen Design Elements

Choosing the right countertop color is all about harmony.

The countertop must be in sync with other kitchen elements, like cabinets, flooring, and even appliances.

When I selected my green onyx, I ensured it complemented my whitewashed cabinets and rustic oak flooring.

The result was a coherent and visually pleasing space where every element blended seamlessly, creating a warm and inviting atmosphere.

Impact on Lighting and Ambiance

The color of your countertop can dramatically alter your kitchen’s overall ambiance and lighting. I chose the green onyx primarily for its translucent quality.

With under-counter lighting, the whole countertop glows with a soft, warm light, making the kitchen feel cozy and welcoming.

It’s perfect for those late-night kitchen trips, as the glow from the onyx is gentle on the eyes. This unique combination of color and lighting has genuinely turned my kitchen into the heart of my home.

Popular Onyx Countertop Colors

1. Classic White Onyx

The Classic White Onyx is a timeless choice that exudes elegance and sophistication.

Its surface is predominantly white with subtle, flowing veins of gold and grey that add depth and character.

The translucence of the white onyx also adds a unique touch, especially when back-lit.

Design Applications

White onyx countertops work wonders in minimalistic or modern kitchen designs.

They provide a clean, bright base that can be paired with virtually any color scheme.

When I visited my friend Sarah’s new home, the white onyx in her kitchen, illuminated from below, added a luxurious touch that left me in awe.

2. Green Onyx

Green Onyx, which I chose, has a rich, verdant color that can range from light to deep shades.

The swirling patterns of darker and lighter green give it a sense of movement, making each slab unique.

Design Applications

Green Onyx works exceptionally well in rustic or earth-toned kitchen designs. It matched perfectly with my whitewashed cabinets and rustic oak flooring, making my kitchen warm and harmonious.

3. Brown Onyx

Brown Onyx has an earthy elegance, composed of swirling patterns in various shades of brown, from rich coffee tones to lighter beige hues.

Design Applications

I recall the stunning brown onyx countertop at my cousin’s house, which gave his modern farmhouse kitchen a warm, grounded feel.

It harmonized beautifully with his wooden cabinets and stainless-steel appliances.

4. Red Onyx

Red Onyx is quite dramatic, with its intense, fiery red tones interspersed with streaks of white and black. It’s a bold choice for those who wish to make a statement.

Design Applications

My neighbor has a red onyx countertop that brings a pop of vibrant color to her otherwise neutral kitchen.

The bold red, paired with her black cabinets, creates a stunning visual contrast.

5. Blue Onyx

Blue Onyx is truly a sight to behold, with its dreamy blue color palette and swirling patterns that evoke ocean images.

Design Applications

A friend of mine used blue onyx in her coastal-themed kitchen, and it was like bringing a piece of the sea indoors.

Paired with white cabinets and nautical decor, it created a serene, beachy atmosphere that I loved.

Factors to Consider When Choosing Onyx Countertop Colors

1. Kitchen Style and Theme

The style of your kitchen should be a key consideration in choosing the color of your onyx countertop.

For example, if you have a modern kitchen with sleek finishes and minimalist decor, you might opt for bold colors like red or blue onyx.

Conversely, a subtle green or brown onyx could blend beautifully with a more traditional kitchen.

When choosing my onyx countertop, I went with green onyx to match my rustic kitchen style. It was a decision I have never regretted.

2. Lighting Conditions

Lighting conditions are crucial in determining how your onyx countertop will look.

Bright, natural light can make colors pop, while dimmer light can create a more subtle, subdued look.

When I installed my countertop, I invested in pendant lights over the island to make the colors shine.

3. Maintenance and Care

Onyx is a delicate and porous stone that requires regular sealing to prevent staining.

Lighter colors may show stains and scratches more readily than darker ones.

I learned this the hard way when I spilled red wine on my light-colored onyx countertop. It took a lot of work to get that stain out!

4. Budget Considerations

While onyx is a spectacular choice for countertops, it’s also pricier.

The cost can vary depending on the color, with rarer colors typically costing more.

When planning my kitchen remodel, I had to balance my desire for a stunning onyx countertop with my budget constraints.

5. Personal Preferences

Your personal preference should be the deciding factor.

It’s your kitchen, and you’ll enjoy (or not) your countertop every day.

I chose my green onyx countertop because I loved the unique patterns and how it made my kitchen feel warm and inviting.

Finding the Right Supplier and Installer

Finding the right supplier and installer for your onyx countertop is as essential as choosing the right stone.

It can make a dramatic difference in your countertop’s final appearance and durability.

Researching reputable suppliers

It’s crucial to start your journey with a well-reputed supplier. When I was in the process of installing my green onyx countertop, I spent a considerable amount of time researching different suppliers.

I looked for those with a broad selection of high-quality onyx, professional service, and a solid reputation in the industry.

It was a tedious process, but it certainly paid off when I found the perfect supplier who could provide the exact green onyx variety I was looking for.

Checking references and reviews

Reviews and references are an invaluable resource when selecting a supplier. I made it a point to read online reviews and ask for references from each potential supplier.

Knowing previous customers’ experiences helped me understand their professionalism, reliability, and customer service.

There was one supplier that I almost went with until I read multiple reviews about his tardy delivery time, which was a deal-breaker for me!

Working with experienced installers

Finally, ensure that you work with an experienced installer. Onyx is a sensitive stone that requires careful handling and specialized installation skills.

When searching for an installer, I specifically looked for those with a track record of installing onyx countertops.

I remember being so impressed with the installer I chose – his finesse and attention to detail were remarkable, and he treated my precious green onyx slab with the utmost care, ensuring a flawless installation.

Remember, the right supplier and installer are instrumental in bringing your vision of a stunning onyx countertop to life.


Looking back at my journey to finding the perfect onyx countertop, a few critical aspects come to mind. The first is the importance of doing your homework regarding suppliers.

It’s all about finding those who can provide a wide selection of high-quality onyx. Secondly, never underestimate the value of references and reviews.

They can reveal much about a supplier’s reliability, professionalism, and customer service. Lastly, ensuring you have an experienced installer is paramount. Remember, onyx is a delicate stone and requires expert handling and installation.

For those of you just beginning your journey in the world of onyx countertops, don’t be afraid to explore.

There is a multitude of colors and patterns available, each with its unique charm and appeal. You might be surprised at just how much a different color or pattern can change the look and feel of a room.

My love affair with green onyx might inspire you but don’t stop there. Explore the experiment, and you’ll find the perfect onyx countertop that speaks to you.


Hi! I’m Kobby, one of the co-owners of and the newest house owner in town. I’m a huge fan of most things natural. Over here on this site, I'm happy to share all the exciting hacks, tricks, and tips I have learned and continue to learn each day about taking care of natural stones.

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