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MyPerfectColor custom spray paint matched to Sherwin Williams 42178 is a deep, cool blue-green with a muted metallic character. It reads dark rather than bright, with enough blue to feel crisp and a green cast that keeps it from looking plain navy.

This color is a practical choice for sprayable parts that need a darker teal-blue finish, such as vents, speaker grilles, switch plates, brackets, railings, mailboxes, shutter hardware, PVC fittings, shelf supports, and small fixture trim. It can also be used on frames, cabinet pulls, and other removable accessories where a coordinated dark accent is wanted on a real object, not a full wall surface.

Because the color is low in lightness and moderately muted, uneven prep, texture, or sheen changes can show through on close inspection. Metallic colors can also look slightly different from one substrate to another, so consistent surface preparation and steady film build help keep the finish even.

Similar colors:

42177
SW1504 Nobility Blue
SW6510 Loyal Blue

Product Data

About Sherwin-Williams

The SHERWIN-WILLIAMS COMPANY was founded by Henry Sherwin and Edward Williams in 1866. Today, the company is a global leader in the development, manufacture and sale of coatings and related products.

Matching Sherwin-Williams Paint Colors

MyPerfectColor matches all of the Sherwin-Williams paint colors so you can find and enjoy the colors you love. MyPerfectColor uses its expert capabilities to recreate the original Sherwin-Williams color by matching the original Sherwin-Williams color books and swatches. MyPerfectColor is not using Sherwin-Williams paint.

The colors shown on this website are computer video simulations of the Sherwin-Williams Color and may not match Sherwin-Williams Color standards. Refer to Sherwin-Williams Publications to obtain the accurate color. Please know that MyPerfectColor is matching the original Sherwin-Williams color. If you intend to touch up paint that has been on your walls for years, know that your color has undoubtedly changed from the original due to exposure to light and age and the new paint may not match. You will achieve best results by re-coating the entire surface.

If you need more assistance, please feel free to contact us and one of our expert staff would be happy to help.

Frequently Asked Questions About Match of Sherwin Williams™ 42178 *

Will MyPerfectColor match of Sherwin Williams 42178 look the same in matte versus gloss?

No. The color reference for Sherwin Williams 42178 stays the same, but the finish can change how the coated surface reads after application. Matte usually reflects less light, while gloss reflects more, so the same matched color can look deeper or lighter depending on sheen.

If you are ordering for a part that must sit next to an existing painted surface, use the finish that best matches the surrounding item. The code alone does not define sheen, so finish is a separate ordering choice.

Where do I find the SDS for MyPerfectColor paint matched to Sherwin Williams 42178?

The SDS is tied to the specific MyPerfectColor product and chemistry, not to the Sherwin Williams 42178 color name alone. To find it, use the MyPerfectColor Safety Data Sheets page for the product you are ordering.

If you are comparing formats, check the SDS for the exact paint type you plan to buy, since spray paint and other product forms can have different safety information.

Can I use MyPerfectColor custom spray paint matched to Sherwin Williams 42178 for baskets, frames, or furniture accents?

Yes. A match of Sherwin Williams 42178 is a practical choice for small objects and accessories where spray application is easier than brushing. It is commonly used for items such as baskets, frames, shelving, brackets, hardware, and decor pieces.

For these projects, the main decision is whether the part can be prepped well enough for spray application and whether the finish you order should match nearby pieces. If the item is removable, spray paint is often the simplest way to coat it evenly.

Can I spray a match of Sherwin Williams 42178 on plastic parts, and do I need primer?

Yes, but plastics vary a lot, so results depend on the specific material and prep. MyPerfectColor spray paint sticks well to most plastics, but a test on the actual part is the safest way to confirm adhesion.

Using the MyPerfectColor primer for acrylic enamel can help improve adhesion on difficult substrates. Clean the part first, use the primer if needed, and verify the result on an inconspicuous area before coating the full item.

How do I confirm Sherwin Williams 42178 is the right reference before ordering a MyPerfectColor match?

Confirm Sherwin Williams 42178 from a physical swatch, known existing painted sample, or another reliable original-brand reference before you order. Do not rely on a screen view alone, since monitor settings can change how the color appears.

MyPerfectColor matches to the original brand color standard, so the most important step is making sure the target reference is correct before placing the order.

How quickly will I receive my paint matched to Sherwin Williams 42178?
All paint is custom-made to order. While most orders ship within 48 hours, the lead-time for paint made to match Sherwin Williams 42178 depends on the type of paint needed. Interior and exterior house paints usually ship within 1 to 3 business days, while custom spray paint typically takes 3-5 business days to ship. The transit time depends on your location and the shipping method you choose. If your need is immediate, select Expedited Production during checkout. Most expedited production orders ship within 24 hours on business days. Please contact MyPerfectColor if you are concerned about a specific deadline. We do our best to make sure you get your paint on time. Learn more about paint lead times at MyPerfectColor.
What are the RGB, HEX and LRV values for Sherwin Williams 42178?
The RGB values for Sherwin Williams 42178 are 15, 76, 98 and the HEX code is #0F4C62. The LRV for Sherwin Williams 42178 is 6.11. The LRV stands for Light Reflectance Value and measures the percentage of light that a color reflects. Learn more about Light Reflectance Values and using RGB and Hex codes for paint.
What is the Hue Angle and Chroma for Sherwin Williams 42178?
The Hue Angle for Sherwin Williams 42178 is 242.34 and the chroma is 21.05. The Hue Angle represents the position of a color's hue around a color wheel. The Chromacity represents the intensity of a hue. Learn more about browsing colors by hue.
Which paint matching the Sherwin Williams 42178 would be best for interior walls?
MyPerfectColor doesn't sell Sherwin Williams, but it does match the Sherwin Williams 42178 in a wide variety of paint types. The best paint for interior walls is typically a matte or eggshell. Flat paint is most often used for ceilings and semi-gloss paint is used for trim. If it is a commercial or industrial application, you may have other considerations such as chemical resistance. Custom spray paint can be used for in wall speakers, railings, HVAC vents, electrical cabinets and anything else needing a professional spray smooth finish. Contact MyPerfectColor support if you have specific questions about the best paint to use for your project.
How can MyPerfectColor match the Sherwin Williams 42178?

MyPerfectColor has an original sample of the Sherwin Williams 42178 in its color archive. This enables us to make paint and verify that it matches the original.

Please note that if your material is not new then the paint may not work for touch up as your material has aged and is likely different than it was when new. Learn more about our color matching accuracy. If you need a touch up application, send us a part and we can create a touch up solution precisely matching the current color and sheen of your specific materials.

Learn more about our color matching service.

How much area will one spray can cover? And what is Sherwin Williams 42178 spray paint made of?

To make spray paint matched to Sherwin Williams 42178. MyPerfectColor uses an acrylic enamel which is a fast-drying durable coating suitable for interior or exterior use. MyPerfectColor custom spray paint enables you to conveniently achieve a professional spray-smooth finish in any color in any sheen. It sticks well to most surfaces including metal, plastics, powder-coatings, cabinets and primed or previously painted wood.

The 11oz spray will cover about 20 square feet per coat. Keep in mind that it is difficult to gauge how much spray you'll need as it is highly dependent on how it is applied. It is better to have too much than run short.

How do I find the same color as the Sherwin Williams 42178 in a different company?

While MyPerfectColor can provide paint matched to the Sherwin Williams 42178, we don't provide any crossover information because this is a subjective determination. Every paint company offers its own unique selection of colors and rarely does a color have an exact equivalent in another company's color collection, so determining which color is the best approximation is a judgement call.

However, under the color image on a color page there is a link that says "Explore Related Colors". Clicking this link displays colors with similar values and you can look for any colors from the company you want.

Keep in mind that this just shows similar colors based on the color values we have stored in our database. It doesn't mean it is the same or give any approximation about how close the color is. You can play around with the Hue, Lightness and Chroma sliders to expand the selection.