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

Match of Sico™ 4180-73 Rio Blue *

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.

  • Image Code
  • HTML
  • URL
  • Direct Image Link
Copy below code in your post
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 Sico 4180-73 Rio Blue is a deep, muted blue-green with a cool lean and low chroma. It reads dark rather than bright, with the green note keeping it from becoming a straightforward navy. The low LRV means it holds a strong presence even in small painted areas.

MyPerfectColor custom spray paint matched to Sico 4180-73 Rio Blue can be used on vents, switch covers, speaker grilles, railings, brackets, mailboxes, shutters, and other small parts that need a darker blue-green finish. It also works well on access panels, hardware, shelving supports, and fixture components where a sprayable coating is more practical than brushing, especially on metal, plastic, or previously coated pieces that have been prepared properly.

Because this is a dark, low-saturation color, it often covers solid substrates well, but sheen and surface texture can still change how it reads. Smoother surfaces usually make the color look cleaner and a little deeper, while rough or uneven surfaces can make the finish appear lighter or less uniform. On darker, worn, or patchy substrates, the final appearance may also vary with film build and coating thickness.

Similar colors:

3170-63 Inuit
6155-83 Montmartre
4179-73 Hideout

Product Data

About Sico Paint

Sico began as a small store producing commercial and industrial paints and varnishes in Quebec City. Now part of PPG Architectural Coatings, Sico continues to please customers with a broad array of colors.

Matching Sico Paint Colors

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

The colors shown on this website are computer video simulations of the Sico Color and may not match Sico Color standards. Refer to Sico Publications to obtain the accurate color. Please know that MyPerfectColor is matching the original Sico 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 Sico™ 4180-73 Rio Blue *

How long does MyPerfectColor spray paint matched to Sico 4180-73 Rio Blue take to dry, recoat, and fully cure?

For a spray paint match of Sico 4180-73 Rio Blue, dry-to-touch can be within minutes, recoating is typically in 1 to 2 hours, and full cure is about two weeks. Dry-to-touch only means the surface is no longer tacky; it does not mean the coating is ready for full handling or stacking. If the parts need to be assembled or put into service, plan around the cure time.

Will Sico 4180-73 Rio Blue look different if I order it in a matte finish instead of a gloss finish?

Yes. The same color match can read differently in matte versus gloss because the finish changes how much light the surface reflects. A matte finish usually softens reflections, while gloss reflects more light and can make the color appear deeper or more vivid. If finish matters on your project, choose it as part of the order instead of assuming the color will look identical across finishes.

Can I use MyPerfectColor paint matched to Sico 4180-73 Rio Blue on baskets, frames, or furniture accents?

Yes. A match of Sico 4180-73 Rio Blue in MyPerfectColor spray paint is a practical option for baskets, frames, shelving, brackets, decor pieces, furniture accents, and similar small items. It is a good fit when the goal is to coordinate a removable or sprayable object to a known brand color reference. Make sure the surface can be sprayed and is properly prepared before painting.

What should I know before spraying Sico 4180-73 Rio Blue on plastic?

Plastics vary a lot, so testing on the actual part is important before painting the full item. MyPerfectColor spray paint sticks well to most plastics, but adhesion depends on the specific plastic and the surface preparation. Cleaning and using the right primer can improve results, and MyPerfectColor primer is a good option when you want better adhesion on difficult surfaces.

What should I confirm before ordering custom paint matched to Sico 4180-73 Rio Blue?

Before ordering, confirm the Sico 4180-73 Rio Blue reference, the MyPerfectColor product type, the sheen, and the quantity you need. Custom-made color matches are not returnable or refundable, so it is important to choose the correct format the first time. If the project calls for spray application, make sure you are ordering the spray paint version rather than another format.

How quickly will I receive my paint matched to Sico 4180-73 Rio Blue?
All paint is custom-made to order. While most orders ship within 48 hours, the lead-time for paint made to match Sico 4180-73 Rio Blue 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 Sico 4180-73 Rio Blue?
The RGB values for Sico 4180-73 Rio Blue are 39, 69, 73 and the HEX code is #274549. The LRV for Sico 4180-73 Rio Blue is 5.22. 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 Sico 4180-73 Rio Blue? 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 Sico 4180-73 Rio Blue 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 Sico 4180-73 Rio Blue?
The Hue Angle for Sico 4180-73 Rio Blue is 209.03 and the chroma is 11.77. 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.
How can MyPerfectColor match the Sico 4180-73 Rio Blue?

MyPerfectColor has an original sample of the Sico 4180-73 Rio Blue 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.

Do I need a primer for Sico 4180-73 Rio Blue?
The need for primer for Sico 4180-73 Rio Blue 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.
How do I convert Sico 4180-73 Rio Blue to a different company?

While we can provide Sico 4180-73 Rio Blue 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.