What is the RAL Colour System?
RAL is an internationally standardised colour matching system widely used in powder coating, paint, and plastics. Each colour is assigned a unique number, ensuring consistency across manufacturers and suppliers.
The RAL colour system originated in Germany in 1927, created by the Reichsausschuss fur Lieferbedingungen (Imperial Commission for Delivery Terms). Its purpose was simple but powerful: to establish a standardised set of colour definitions that anyone in any industry could reference with confidence. Instead of describing a colour as "dark blue" or "forest green" — which is open to interpretation — you specify a precise RAL number and everyone involved knows exactly which colour you mean.
The most widely used version is RAL Classic, which contains over 200 colours, each identified by a four-digit number. The first digit indicates the colour range: 1xxx for yellows, 2xxx for oranges, 3xxx for reds, 4xxx for violets, 5xxx for blues, 6xxx for greens, 7xxx for greys, 8xxx for browns, and 9xxx for whites and blacks. This makes it straightforward to navigate and narrow down your options.
RAL has become the dominant colour standard in powder coating because it provides a universal reference point. When you tell a powder coater "RAL 9005", there is no ambiguity — it is jet black, the same jet black regardless of the powder manufacturer or supplier. This consistency is essential for projects where colour accuracy matters, from architectural facades to matched furniture sets.
How RAL Colours Work in Powder Coating
When you specify a RAL number for your powder coating project, you're giving us an exact reference that eliminates guesswork and ensures your item matches your colour specification precisely.
Powder coating manufacturers formulate their products to match specific RAL references. When you order a powder in RAL 7016 (anthracite grey), the pigment blend in that powder has been calibrated to reproduce that exact colour definition. This means you can have confidence that the colour you select from a RAL chart or sample chip is what you will see on your finished item.
One important factor to be aware of is how gloss level affects colour perception. The same RAL colour in a high-gloss finish will appear noticeably different to the same colour in a matte finish. Gloss finishes tend to look deeper and more saturated because they reflect light directly, while matte finishes scatter light and can appear lighter or more muted. If you are matching to an existing item, it is important to specify both the RAL number and the gloss level.
It is also worth noting that a small colour chip will always look slightly different to a large coated panel or a full piece of furniture. This is because the human eye perceives colour differently across varying surface areas, and light reflects differently across a larger expanse. We always recommend viewing a sample in conditions as close to the final environment as possible before committing to a colour for a large project.
Popular RAL Colours for NZ Projects
Certain colours consistently prove popular across different industries and applications in the New Zealand market.
In New Zealand's architectural and construction sectors, neutral tones dominate. RAL 9005 (jet black) and RAL 9017 (traffic black) are perennially popular for gates, fences, and balustrades. RAL 7016 (anthracite grey) is a contemporary favourite for architectural joinery and building facades, while RAL 7021 (black grey) offers a softer, more charcoal-toned alternative. For lighter applications, RAL 9010 (pure white) and RAL 9016 (traffic white) are commonly specified for window frames, cladding, and louvres.
In the automotive, 4WD, and accessories space, satin and matte black finishes are the most frequently requested. Textured black finishes are popular for bull bars, side steps, and roof racks because they combine a rugged appearance with excellent resistance to stone chips and scuffs.
Outdoor furniture tends towards classic choices — matte black, charcoal grey, and white remain the staples, though we also see regular requests for greens, heritage tones, and the occasional bold colour to match a specific outdoor scheme. If you are unsure which colour is right for your project, our team is happy to help you narrow down the options. Get in touch to discuss your requirements.
Custom Colour Matching
If you have a specific colour in mind that doesn't match a standard RAL number, custom colour matching may be possible.
The RAL Classic chart covers a wide range of colours, but it does not cover every conceivable shade. If you have a specific colour in mind that does not correspond to a standard RAL number, custom colour matching may be an option. The process typically involves providing a physical colour reference — such as a painted sample panel, a colour chip, or even a small section of the material you want to match — which is then used to find the closest available powder formulation.
It is important to understand that custom matching has inherent tolerances. Powder coating and liquid paint are different systems with different pigment bases, so an absolutely identical match is not always achievable. However, in most cases, a very close match can be found that is more than acceptable for the intended application. Viewing the matched sample alongside the original reference in the same lighting conditions is the best way to assess whether the match meets your expectations.
For many projects, choosing the closest standard RAL colour is the most practical approach. Standard colours are readily available, require no additional lead time, and benefit from the consistency of established manufacturing specifications. If you are weighing up custom matching versus a standard RAL option, we can help you evaluate the trade-offs for your specific project.
Resene and Dulux Colour Equivalents
Many customers want their powder coated metal to match existing Resene or Dulux painted surfaces on their building or project.
It is common for customers to want their powder coated metalwork to match existing painted surfaces on a building or structure. If your home is painted in a Resene colour, for example, you may want your gates or balustrades to match. In many cases, we can find the closest RAL equivalent to a Resene or Dulux colour, and the result is close enough that the difference is not noticeable in practice.
However, it is important to set realistic expectations. Paint and powder coating are fundamentally different systems with different pigment formulations, binders, and surface characteristics. An exact match between a wet-applied paint film and a cured powder coating is not always achievable, even when the colours are nominally the same. Differences in gloss level between the two finishes will also affect how the colours are perceived — a satin powder coat next to a high-gloss painted wall will always look different, even if the base colour is identical.
The best approach is to bring a physical colour chip or a sample of the existing painted surface to our workshop. This gives us the most accurate reference to work with, rather than relying solely on colour names or codes that may vary between systems. We can then assess the closest available powder coat match and show you a sample before we proceed.
Finish Types Available
The RAL colour is only one half of the equation — the finish type significantly affects how the final result looks and performs.
Gloss finishes are the most common and are often the default when no finish type is specified. They produce a smooth, reflective surface that makes colours appear vivid and saturated. Semi-gloss and satin finishes offer a middle ground — less reflective than full gloss but still with a subtle sheen. Matte finishes absorb light rather than reflecting it, producing a flat, understated look that is popular in contemporary architectural and interior design applications.
Textured finishes add a tactile and visual dimension beyond flat colour. Hammertone finishes create a distinctive dimpled pattern that is both attractive and practical — the texture helps conceal minor surface imperfections on the substrate and is highly resistant to showing fingerprints and minor scuffs. Wrinkle finishes produce a fine, crinkled texture that is popular for toolboxes, equipment housings, and industrial components. Metallic and pearl effect powders contain reflective particles that create depth and shimmer under different lighting conditions.
Clear coat powder is also available for applications where you want to protect the underlying material — such as polished or brushed aluminium — without changing its appearance. In terms of durability, all standard powder coat finishes perform well in New Zealand conditions. For items in particularly demanding environments, such as coastal or high-UV locations, our team can recommend the most suitable combination of colour and finish for your needs.
Frequently Asked Questions
RAL is an internationally standardised colour matching system that originated in Germany in 1927. Each colour is assigned a unique four-digit number, ensuring consistency across manufacturers and suppliers worldwide. It is the go-to reference system for powder coating because it eliminates ambiguity — when you specify a RAL number, everyone involved knows exactly which colour you mean, regardless of the powder supplier or coating applicator.
In many cases, yes. We can find the closest RAL equivalent to a Resene or Dulux colour for your powder coating project. However, because paint and powder coating are different systems with different pigments and surface characteristics, an exact match is not always achievable. Providing a physical colour chip or a sample of the existing painted surface gives the most accurate result. We recommend viewing both finishes side by side in the same lighting conditions before committing.
The right finish depends on your application, the environment, and your aesthetic preferences. Gloss finishes highlight colour vibrancy and are easy to clean. Matte and satin finishes offer a more subdued, contemporary look. Textured finishes such as hammertone can hide minor surface imperfections and are highly practical for items that will see heavy use. For outdoor or coastal environments, durability should also be factored in. Our team can advise on the best option for your specific project — just get in touch.
Yes. We have colour sample chips and swatches available that you can view at our Onehunga workshop. Keep in mind that a small chip will look different to a large coated panel, particularly with gloss finishes, due to how light reflects across a larger surface area. If colour accuracy is critical for your project, we recommend viewing samples in conditions similar to where the finished item will be installed. Contact us on 09 218 6436 to arrange a visit.