Looking for color by Hex, RGB, CMYK, or Lab?

Color Image

Actual color may vary from on-screen representation. Please view a physical color swatch or material sample to confirm your color choice prior to purchase.

Fast Shipping

70% of Orders Ship within 3 Business Days.

Ready to purchase? Select your options in the 4 steps below.

Step 1: Select Paint Type / Application


A match of Valspar 40042 Boston Coastline reads as a muted blue-green gray with a cool bias and low chroma. It has medium depth, so it does not read especially light or dark, and the gray cast keeps the color subdued rather than crisp.

MyPerfectColor custom spray paint matched to the selected brand color can be useful on vents, switch covers, speaker grilles, railings, brackets, mailboxes, shutters, PVC, and other small parts where a coordinated finish matters more than a bold color shift. It also works for frames, shelving ends, hardware, and furniture accents that are practical to spray before reinstalling or handling.

Because the color is fairly muted, it generally covers more predictably than vivid colors, but the final look still depends on primer, surface texture, and film build. On glossy or uneven substrates, the blue-green cast and sheen differences may show more clearly, so proper prep helps the match read consistently.

Similar colors:

T615 Brimming Over
CI17 Patina Blue
5002-4A Secluded Garden

Product Data

About Valspar Paint

The Valspar Corporation is a manufacturer of paint and coatings based in Minneapolis, Minnesota. Valspar was founded in 1806 as a paint dealership in Boston, Massachusetts. The Valspar name emerged in 1903 as the name of a clear varnish and became the company name in 1932. Sherwin-Williams acquired Valspar in June 2017.

Matching Valspar Paint Colors

MyPerfectColor is able to match all of the Valspar paint colors so you can find and enjoy the colors you love. MyPerfectColor uses its expert capabilities to recreate the original Valspar 40042 Boston Coastline by matching the original Valspar color books and swatches. MyPerfectColor does not use Valspar paint.

The colors shown on this website are computer video simulations of the Valspar 40042 Boston Coastline and may not match Valspar Color standards. Refer to Valspar Publications to obtain the accurate color. Please know that MyPerfectColor is matching the original Valspar 40042 Boston Coastline. 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 the 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 Valspar™ 40042 Boston Coastline *

How will the finish affect a MyPerfectColor match of Valspar 40042 Boston Coastline after it is applied?

Finish changes how a match of Valspar 40042 Boston Coastline reads on the finished item. A glossier finish reflects more light and can make the color look slightly brighter, while a flatter finish usually looks softer and less reflective. The code itself only identifies the color target; it does not define the sheen.

If you need the coating to match an existing part, order the finish that matches that surface as closely as possible. The same color in different finishes can look different once it is sprayed and cured.

Can I order MyPerfectColor custom spray paint matched to Valspar 40042 Boston Coastline for switch covers, vents, or hardware?

Yes. MyPerfectColor custom spray paint matched to Valspar 40042 Boston Coastline is a practical option for small parts such as switch covers, vents, grilles, knobs, brackets, trim pieces, and similar items where a spray finish is easier than brushing.

For these projects, the main decision is whether you need a color match for a removable part or a larger surface. If the item is small or awkward to coat with a brush, spray paint is often the better format.

How much MyPerfectColor spray paint matched to Valspar 40042 Boston Coastline do I need?

Coverage depends on the size of the part, the texture of the surface, the hiding power needed, the application method, and how many coats you plan to apply. A typical spray can covers about 20 square feet with one coat, but real-world coverage can be lower on rough or porous surfaces.

If you are comparing formats, other paint types typically cover about 400 to 600 square feet per gallon. For Valspar 40042 Boston Coastline, it is usually best to estimate based on the actual project area and plan for extra coating if the substrate is dark, uneven, or difficult to cover evenly.

Will MyPerfectColor spray paint matched to Valspar 40042 Boston Coastline stick to plastic parts?

MyPerfectColor spray paint adheres well to most plastics, but plastics vary a lot. For a match of Valspar 40042 Boston Coastline on plastic, test the actual part first whenever possible because some plastics need different preparation or a primer to get reliable adhesion.

Using the MyPerfectColor primer for Acrylic Enamel can improve adhesion on difficult surfaces. If the part is a low-energy plastic or a high-wear item, prep and primer choice matter as much as the color match.

What spray technique should I use for a match of Valspar 40042 Boston Coastline on small parts?

Use light, even coats and keep the can moving so the film builds gradually. For Valspar 40042 Boston Coastline, heavy passes can cause runs, uneven sheen, or a color build that looks darker or muddier than expected.

Hold a consistent distance, overlap each pass slightly, and let each coat flash before adding the next one. A controlled spray pattern usually gives a more even match on hardware, vents, grilles, and other small parts.

How quickly will I receive my paint matched to Valspar 40042 Boston Coastline?
All paint is custom-made to order. While most orders ship within 48 hours, the lead-time for paint made to match Valspar 40042 Boston Coastline 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 LRV, HEX, and RGB values for the Valspar 40042 Boston Coastline?
The RGB values for Valspar 40042 Boston Coastline are 122, 148, 141 and the HEX code is #7A948D. The LRV for Valspar 40042 Boston Coastline is 27.31. The LRV stands for Light Reflectance Value and measures the percentage of light that a color reflects. Learn more about using RGB and Hex codes for matching colors and Light Reflectance Values.
What paint type is used to make spray paint matched to Valspar 40042 Boston Coastline? And how many spray cans do I need?

MyPerfectColor uses an acrylic enamel which is a fast-drying durable coating suitable for interior or exterior use. MyPerfectColor custom spray paint matched to Valspar 40042 Boston Coastline 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 MyPerfectColor 11oz spray will cover about 20 square feet per coat. Keep in mind that it is difficult to gauge spray paint need as the coverage is highly dependent on how it is applied. Learn more about how spray paint works at MyPerfectColor.

What is the Hue Angle and Chroma for Valspar 40042 Boston Coastline?
The Hue Angle for Valspar 40042 Boston Coastline is 177.36 and the chroma is 10.86. 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.
Does Valspar paint color Valspar 40042 Boston Coastline need primer?
MyPerfectColor doesn't sell Valspar paint, but it does match the Valspar 40042 Boston Coastline and all the other Valspar colors in a wide variety of paint types. The need for primer depends on the specific paint and the substrate being painted. The top quality paints these days tend to be self-priming over most surfaces, while paint at the mid to lower grade quality levels will need a separate primer. Most special situations such as bleeding type woods or difficult to adhere surfaces like plastic will often need a specialty primer. Contact MyPerfectColor support if you have specific questions about the best paint to use for your project and whether you need a primer.
How can MyPerfectColor color match the Valspar 40042 Boston Coastline in paint?

MyPerfectColor has hundreds of color books in its archive, including the original Valspar paint color books. The color Valspar 40042 Boston Coastline you are looking for is in our library. We are able to make paint and verify that it matches the original.

Please note that if you are trying to touch up, the paint on your wall now is likely different than it was when first painted. MyPerfectColor will be sending the original color which may no longer match your walls. Learn more about color matching accuracy and our color matching service.

How do I convert Valspar 40042 Boston Coastline to a different color from another paint company?

While we can provide Valspar 40042 Boston Coastline in paint, we don't provide any crossover information. We've found that every paint company offers its own unique selection of colors and rarely does a color have an exact equivalent in another brand.

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