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 Alcoa 5MA97743 Castle Gray is a muted warm gray with a subtle beige cast and low chroma. It reads as a medium-light, earthy neutral rather than a clean or cool gray, with enough depth to stay steady on exterior metal details without looking dark.

For direct touch up after shipping damage, installation marks, field cutting, or service work, use Original Material Match when available because it includes a sheen match. In this trim coil and metal roofing context, the color can also be used on replacement gutters, fascia trim, flashing, downspout straps, vent hoods, bracket covers, and other paintable accessories that need to blend with nearby factory-finished parts.

Because the color is relatively muted, it often covers a wide range of small coordination jobs without looking sharp or overly colored. Even so, the surface finish matters: on smooth metal, gloss level, texture, and substrate can change how warm or gray the color appears, and small repairs beside aged installed material may still read differently from the surrounding finish.

For touch-up work on factory-finished building materials, choose a product option that explicitly says Original Material Match. Other MyPerfectColor product types can still be useful for separate parts, replacement pieces, or broader repainting, but they should not be treated as direct touch-up options unless the listing says Original Material Match.

Similar colors:

Village Green
Aspen Grey
Brookstone

Product Data

Matching Alcoa Paint Colors

MyPerfectColor is able match all of the Alcoa paint colors so you can find and enjoy the colors you love. MyPerfectColor uses its expert capabilities to recreate the original Alcoa color by matching the original Alcoa color books and swatches.

The colors shown on this website are computer video simulations of the Alcoa Color and may not match Alcoa Color standards. Refer to Alcoa Publications to obtain the accurate color. Please know that MyPerfectColor is matching the original Alcoa color. If you intend to touch up paint that has been on your walls or siding 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 Alcoa™ 5MA97743 Castle Gray *

Can I use 5MA97743 Castle Gray for touch up after shipping or installation damage on Alcoa trim coil?

Yes, if you need touch up on factory-finished Alcoa trim coil after shipping damage, installation damage, field cutting, service work, or a scratched edge, choose a product option that explicitly says Original Material Match. In this collection, that is the option suitable for direct touch up because it includes a sheen match.

MyPerfectColor can make a match of 5MA97743 Castle Gray for that kind of repair, but the color reference alone does not guarantee an invisible repair on an installed surface.

Will 5MA97743 Castle Gray match an older installed Alcoa trim coil surface exactly?

Not always. Even if 5MA97743 Castle Gray is the correct Alcoa reference, an older installed surface can look different because of sun exposure, weathering, chalking, sheen change, texture, and batch variation.

If the repair is beside existing installed material, the safest expectation is close coordination rather than a guaranteed invisible blend. When the area is highly visible or the approval is tight, a sample or existing-part match is usually safer than relying on the nominal color code alone.

Which MyPerfectColor product should I order for 5MA97743 Castle Gray touch up on Alcoa trim coil?

For direct touch up on factory-finished Alcoa trim coil, choose only a product option that explicitly says Original Material Match. That is the format intended for touch up because it includes a sheen match.

Water-based housepaint and specialty products such as urethane or epoxy can still be color-matched options, but they should not be treated as the right choice for direct touch-up work on factory-finished building materials.

Is 5MA97743 Castle Gray the right reference for Alcoa roofing, gutters, and trim parts?

Yes. For the Alcoa trim coil material family, 5MA97743 Castle Gray is a building-material color reference used for related metal details such as roofing trim, gutters, flashing, and adjacent accessory parts that need to blend with the same finish family.

If you are painting a replacement part or a separate metal piece, use the color reference to coordinate with the surrounding Alcoa material. If you are repairing the original factory-finished surface itself, use an Original Material Match option for touch up.

When should I send a sample instead of ordering 5MA97743 Castle Gray by code alone?

Send a sample or match the existing part when the installed Alcoa trim coil has aged, when the repair area is highly visible, or when the approval tolerance is tight. In those cases, the code 5MA97743 Castle Gray is a useful reference, but the actual installed surface may not read the same after weathering or sheen change.

A sample or existing-part match is the better choice when you need the closest practical result for a specific site condition rather than a standard factory color reference.

How quickly will I receive my paint matched to Alcoa 5MA97743 Castle Gray?
All paint is custom-made to order. While most orders ship within 48 hours, the lead-time for paint made to match Alcoa 5MA97743 Castle Gray 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.
Can I use this Alcoa 5MA97743 Castle Gray paint to touch up my Alcoa materials?

It depends. MyPerfectColor matches the color of the Alcoa 5MA97743 Castle Gray but may not match the sheen. If you see Custom Sheen as a sheen option, this means we also match the sheen of the material, otherwise you would need to pick the closest sheen available. However, keep in mind that our version of the Alcoa 5MA97743 Castle Gray is based on matching an official Alcoa color sample. The color and sheen of your specific Alcoa parts may vary. If your material is not new and has been exposed to the weather, then it is likely that the color has changed over time. MyPerfectColor samples not been exposed to sunlight and weather. If you need a touch up application, you may need to send us a part so 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.

What are the RGB, HEX and LRV values for Alcoa 5MA97743 Castle Gray?
The RGB values for Alcoa 5MA97743 Castle Gray are 0, 0, 0 and the HEX code is #000000. The LRV for Alcoa 5MA97743 Castle Gray is 0.01. 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 paint type is used to make spray paint matched to Alcoa 5MA97743 Castle Gray? 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 Alcoa 5MA97743 Castle Gray 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.

Can I paint gutters to match my Alcoa siding?
Absolutely. You can use the MyPerfectColor spray paint matching the Alcoa 5MA97743 Castle Gray to paint your gutters to match your siding. The spray paint will enable you to conveniently achieve a spray smooth finish. Learn more about custom spray paint.
Can you paint Alcoa siding with Alcoa 5MA97743 Castle Gray?

MyPerfectColor Paint matching the Alcoa 5MA97743 Castle Gray can be used to paint siding and any other items you'd like to blend into your exterior such as windows, doors, lights, pipes, gutters and vents. Many types of paint are available with no minimum order quantities. MyPerfectColor offers spray paint, paint pens, touch up bottles, water-based acrylics, epoxies, urethanes and a variety of other paints. The best paint for painting siding is exterior house paint (usually low lustre sheen). Spray paint works great for windows, doors, lights, pipes, vents and more.

Paint can be purchased by choosing the paint type above. Contact MyPerfectColor support if you have specific questions about the best paint to use for your project.

How does MyPerfectColor match the Alcoa 5MA97743 Castle Gray?

MyPerfectColor has the original Alcoa color samples. A sample of the Alcoa 5MA97743 Castle Gray 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 your existing materials are not new and you are trying to touch up, they will have aged and are likely different now than they were when new. MyPerfectColor will be sending paint matching the sample at our facility which has not aged the same as your materials and may also be different due to other factors such as variations in manufacturing processes. If your match is critical, you may consider sending a part of your materials for precise color matching. Learn more about our color matching services.

Does paint matched to Alcoa 5MA97743 Castle Gray need primer if I am painting outside?
The need for primer for 5MA97743 Castle Gray depends on the type of paint, the substrate being painted and where it will be located. See our Primer Selection Table to see what primer you might need and learn more about when you might need a primer. Most people don't use a primer for a touch up paint application, but a primer may improve adhesion and is typically recommended for exterior applications.