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

Spray, OEM, Bottles and Pens

House and Wall Paint

Epoxy, Urethane, and Colorant Concentrate


A match of ICI 637 Fossil Grey is a light, low-chroma neutral with a warm gray-beige character. It reads soft rather than crisp, with a subtle stone or putty cast and only a small amount of color strength.

MyPerfectColor custom spray paint matched to 637 Fossil Grey is useful on parts that need a restrained, coordinated finish without looking stark. It can be applied to HVAC vents, return grilles, switch plates, outlet covers, PVC pipe, railings, brackets, shelving supports, picture frames, mailboxes, speaker grilles, and other small fixture or hardware pieces where spray application helps produce an even coat.

Because this is a quiet, light color rather than a vivid one, it usually covers more predictably than stronger hues, but substrate condition still matters. Darker plastics, patched metal, or uneven existing coatings can influence the final appearance, and finish level will change how warm or soft the color reads. Proper preparation and multiple light coats can help the match lay down evenly.

Similar colors:

546 O'Keefe Grey
546 Okeefe Grey
480 Shadowbox

Product Data

About ICI Paints

Imperial Chemical Industries (ICI) was a British chemical company that made paints and speciality products, including food ingredients, speciality polymers, electronic materials, and more.

Matching ICI Paint Colors

MyPerfectColor is able to match all of the ICI paint colors so you can find and enjoy the colors you love. MyPerfectColor uses its expert capabilities to recreate the original ICI 637 Fossil Grey by matching the original ICI color books and swatches. MyPerfectColor is not using ICI paint.

The colors shown on this website are computer video simulations of the ICI 637 Fossil Grey and may not match ICI Color standards. Refer to ICI Publications to obtain the accurate color. Please know that MyPerfectColor is matching the original ICI 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 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 ICI™ 637 Fossil Grey *

Will MyPerfectColor 637 Fossil Grey look the same after it is applied on different surfaces and in different lighting?

MyPerfectColor matches 637 Fossil Grey to the selected ICI color reference, but the finished look can still change with lighting, sheen, substrate texture, and nearby surfaces. The same match can read a little differently on metal, plastic, wood, or a previously coated part.

If the item will be viewed next to an existing painted surface or under strong daylight or indoor lighting, it is a good idea to test the color on the actual substrate and check it in the light where it will be used.

How do I confirm ICI 637 Fossil Grey before ordering a MyPerfectColor match?

Confirm ICI 637 Fossil Grey from a physical swatch or a known existing painted reference before ordering. Screen images can vary by device and do not reliably define the target color.

MyPerfectColor is supplying a custom-matched paint made to the selected ICI color reference, not the original ICI paint product. Verifying the reference first helps reduce the risk of ordering the wrong match.

Can I order MyPerfectColor 637 Fossil Grey in spray paint for switch covers, vents, or hardware?

Yes. A match of ICI 637 Fossil Grey can be ordered in MyPerfectColor custom spray paint for small parts such as switch covers, vents, knobs, grilles, brackets, and similar items. Spray format is often the practical choice when you want a smooth finish on removable hardware or trim pieces.

If the part is plastic, metal, or already coated, make sure the surface is prepared correctly before spraying so the finish can bond and look even.

What surface prep should I do before painting ICI 637 Fossil Grey?

For ICI 637 Fossil Grey, start with a clean, dry surface and remove oil, dust, and loose coating before painting. Light scuffing can help on smooth surfaces when it is appropriate for the substrate, and masking helps keep the edges clean on small parts.

Because prep needs vary by metal, plastic, wood, and existing coatings, test on the actual item before painting the full piece. A small test can reveal adhesion or appearance issues before you commit to the project.

How does sheen affect MyPerfectColor 637 Fossil Grey, and which finish should I choose?

Sheen changes how ICI 637 Fossil Grey looks and how the finish performs. Lower sheen usually reduces glare and can hide surface texture better, while higher sheen reflects more light and is typically easier to wipe clean.

If you are matching a specific part or fixture, choose the finish that fits the project requirement instead of judging the color by sheen alone. The same color reference can appear different once gloss level is changed.

How quickly will I receive my paint matched to ICI 637 Fossil Grey?
All paint is custom-made to order. While most orders ship within 48 hours, the lead-time for paint made to match ICI 637 Fossil Grey 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 ICI 637 Fossil Grey?
The RGB values for ICI 637 Fossil Grey are 203, 194, 182 and the HEX code is #CBC2B6. The LRV for ICI 637 Fossil Grey is 54.65. 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 ICI 637 Fossil Grey?
The Hue Angle for ICI 637 Fossil Grey is 82.37 and the chroma is 7.08. 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 ICI 637 Fossil Grey would be best for interior walls?
MyPerfectColor doesn't sell ICI, but it does match the ICI 637 Fossil Grey 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 ICI 637 Fossil Grey?

MyPerfectColor has an original sample of the ICI 637 Fossil Grey 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 many spray cans of the ICI 637 Fossil Grey should I get?

MyPerfectColor offers custom spray paint matched to ICI 637 Fossil Grey which enables you to conveniently achieve a professional spray-smooth finish. It is difficult to gauge spray paint coverage because it depends on how you apply it and the amount of overspray, but generally the 11oz spray will cover about 20 square feet per coat.

MyPerfectColor uses an acrylic enamel which is a fast-drying durable coating suitable for interior or exterior use. This paint sticks well to most surfaces including metal, plastics, powder-coatings, cabinets and primed or previously painted wood.

How do I find the same color as the ICI 637 Fossil Grey in a different company?

While MyPerfectColor can provide paint matched to the ICI 637 Fossil Grey, 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.