2021 Chevrolet Silverado 2500HD — Paint Color Codes

Keeping your truck looking its best requires knowing exactly how to match its factory paint. Whether you are dealing with a minor scratch from a job site, rock chips from the highway, or a scuff on your tailgate, getting the perfect touch-up color is crucial. This guide covers everything you need to know about the 2021 Chevrolet Silverado 2500HD paint color codes, where to locate them, and how to successfully apply touch-up paint.

Quick reference

Below is a list of the factory colors offered for the 2021 Chevrolet Silverado 2500HD. Note that General Motors (GM) typically uses both a three-character RPO code (like GAZ) and a four-digit WA code (like WA8624) for their paint colors.

Color Name	Paint Code (RPO / WA)	Type (Solid / Metallic / Pearl)
Summit White	GAZ / WA8624	Solid
Black	GBA / WA8555	Solid
Red Hot	G7C / WA130X	Solid
Silver Ice Metallic	GAN / WA636R	Metallic
Northsky Blue Metallic	GA0 / WA619D	Metallic
Oxford Brown Metallic	GNK / WA217D	Metallic
Mosaic Black Metallic	GB8 / WA384A	Metallic
Cherry Red Tintcoat	GSK / WA252F	Pearl / Tri-coat
Iridescent Pearl Tricoat	G1W / WA140X	Pearl / Tri-coat

Note: If you are uncertain about your specific color, always confirm your paint code via your VIN at a local Chevrolet dealer or with your paint supplier.

Where to find your paint code

Finding the paint code on your 2021 Chevy Silverado 2500HD is a straightforward process, though GM has slightly changed the location in recent years.

For the 2021 model year, check the driver's side door jamb (B-pillar). You are looking for a silver or black certification label that often features a QR code. Look towards the bottom of this sticker. You will see "BC/CC" (which stands for Basecoat/Clearcoat), followed by a "U" (representing the Upper body color). The alphanumeric sequence following the "U" is your primary WA paint code (e.g., U8624 for Summit White).

If the sticker in the door jamb is missing or unreadable, check the glove box for the Service Parts Identification (SPID) label, though this is more common on older generations. You can also provide your Vehicle Identification Number (VIN) to any Chevrolet dealership parts department, and they can pull up your exact factory paint code.

Best touch-up paint sources

Once you have your code, you need high-quality paint. Here are the best sources for 2021 Silverado touch-up paint:

• Your Local Chevrolet Dealer: The best place for guaranteed color match, especially for small touch-up pens and brush bottles. OEM AC Delco touch-up paint is highly reliable.
• AutomotiveTouchup: Known for precision, they custom-mix paint based on your exact WA code. They offer everything from half-ounce touch-up bottles to aerosol spray cans and full pints/quarts for larger spray gun repairs.
• Dupli-Color: A highly accessible option found in most local auto parts stores (like AutoZone or O'Reilly). Their Exact-Match line is great for standard colors like Summit White and Black, and their 2-in-1 Scratch Fix pens are perfect for small chips.
• Tcoat (Custom-Mix): An excellent online provider for custom-mixed touch-up kits, providing all the necessary tools, including primers and clear coats, for a professional-level DIY repair.

How to use touch-up paint

Achieving a seamless repair requires patience and the right process. Follow these steps:

1. Clean the Area: Wash the damaged area with automotive soap, dry it, and wipe it down with a wax and grease remover or rubbing alcohol. There should be no dirt, wax, or rust in the scratch.
2. Apply Primer: If the scratch goes down to the bare metal or plastic, apply a thin layer of automotive primer. Let it dry completely (usually 20–30 minutes).
3. Apply Base Coat: Shake your touch-up paint vigorously. Apply the color in very light, thin coats using a fine-tipped brush or toothpick for small chips. Do not glob the paint. Allow 15–20 minutes of drying time between coats until the color covers the primer entirely.
4. Apply Clear Coat: Once the base coat is thoroughly dry (wait at least an hour, or as directed by the paint instructions), apply the clear coat. The clear coat seals the repair, provides UV protection, and restores the factory gloss.

Color matching tips for pearls and tri-coats

If your 2021 Silverado is painted in Iridescent Pearl Tricoat or Cherry Red Tintcoat, your touch-up process is a bit more complex.

Tri-coat paints require three distinct layers: a solid base color, a translucent mid-coat (which contains the metallic flakes, pearls, or specific tinted hues), and the final clear coat.

• Test first: Always test the layers on a piece of scrap metal or heavy cardboard first. The final color is heavily dependent on how many layers of the mid-coat you apply.
• Build slowly: Apply the base coat until opaque. Then, apply the mid-coat very lightly. Compare the shimmer and depth to your truck's paint after each mid-coat layer dries.
• Blend carefully: Tri-coats are notoriously difficult to match perfectly in small, localized spots because the factory robots spray the mid-coat over the entire body uniformly. Keep your touch-up footprint as small as possible.

For large areas of damage on tri-coat trucks, DIY repairs via aerosol cans rarely yield seamless results. Find a trusted body shop on Repairius.