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PMS 645 U is a Pantone PMS color used as a standardized visual reference for brand and marketing color matching. It presents a restrained blue impression that feels cool, composed, and corporate, with a slightly subdued, low-contrast presence rather than a vivid or energetic one.

The color reads as a mid-light blue with an LRV of 29.26 and leans cool with a blue-to-blue-violet tendency. Its low-to-moderate saturation and soft gray undertone reduce brightness and visual sharpness, contributing to a controlled, professional appearance.

This color works well where a calm, professional blue is needed without strong visual dominance, such as branded panels, displays, or architectural elements. Its lower saturation makes surface preparation and consistent application important, as uneven substrates or sheen variations may become noticeable.

Similar colors:

Pantone 645 C: slightly darker and cleaner, with less gray softness.
Pantone 644 U: lighter and more open, with reduced visual weight.
Pantone 646 U: darker and cooler, with increased depth and formality.

Product Data

About Pantone and MyPerfectColor

MyPerfectColor is the official licensee of Pantone and authorized to reproduce the Pantone™ PMS 645 U color in spray paint and other paints.

MyPerfectColor helps marketing professionals turn graphic designs into physical reality. Whether you are a manufacturer, entrepreneur, industrial designer, prototyper/modeler, marketer, agency, printer, retailer, sign manufacturer, exhibit fabricator or architect, MyPerfectColor will help you nail the PMS 645 U color and produce outstanding results.

MyPerfectColor matches the Pantone PMS 645 U color based on Pantone color publications. The PMS 645 U color shown on this website are computer video simulations of the PANTONE PMS 645 U Color and may not match PANTONE®-identified Color standards. Refer to current PANTONE Publications to obtain accurate color.

The Pantone PMS 645 U color may vary from the PANTONE Color Standards based on lighting conditions, angle of view and/or due to differences in pigments, manufacturing process, substrate and/or limitations in the color capability of the paint. Refer to current PANTONE Publications to obtain accurate color.

PANTONE® and other Pantone trademarks are the property of Pantone LLC. Portions © Pantone LLC, 2019. Produced under License Agreement between MyPerfectColor.com and Pantone LLC.

Pantone

Frequently Asked Questions About Pantone™ PMS 645 U

What are best practices for approving a PMS 645 U color match against a Pantone reference?

When approving PMS 645 U, compare samples using consistent lighting and the same type of substrate whenever possible. View the Pantone reference and the painted sample side by side, not at different times or locations.

Allow the coating to fully dry and cure before making a final judgment, since color can shift slightly as it settles. Avoid evaluating small wet spots or partially dried areas, as they do not represent the final appearance.

What should I consider when applying a PMS 645 U Pantone match to metal or powder-coated parts?

For metal or previously powder-coated parts, surface preparation matters. Cleaning and scuffing help ensure even coverage and reduce visual variation.

Existing coatings, primer color, and gloss level can influence how PMS 645 U appears. Because of this, it is recommended to evaluate a sample on the actual substrate and finish before committing to a full production run.

Why can PMS 645 U look different under various lighting conditions?

PMS 645 U, like all Pantone colors, can appear to change under different light sources. Daylight, LED, fluorescent, and halogen lighting can each shift how the color is perceived.

For critical brand applications, review the color under the same lighting where it will be displayed or installed. This helps avoid surprises caused by metamerism, where colors match in one light but differ in another.

When is ordering a standard Pantone PMS 645 U match the right choice?

A standard PMS 645 U match is appropriate when the Pantone reference itself is the color target, such as for branded displays, signage, exhibits, prototypes, and marketing installations.

This approach works well when visual brand alignment is the priority rather than matching an existing painted surface. For large or high-visibility projects, confirming the appearance with a sample first is recommended.

How quickly will I receive my paint matched to Pantone PMS 645 U?
All paint is custom-made to order. While most orders ship within 48 hours, the lead-time for paint made to match Pantone PMS 645 U 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 the Pantone PMS 645 U for touch up?

Unfortunately, no.

Some manufacturers specify Pantone colors as touch up for their products, but Pantone does not work well as a proxy for a touch-up solution (for a litany of reasons such as it doesn't include sheen and Pantone color tolerances are not tight enough for touch up). When we match Pantone colors we are matching to a swatch in a Pantone book - not to your product.

The only way we can provide a touch-up solution for your product is for you send us a part. We would use the part to create a touch-up grade match. Unfortunately, there isn't an effective way to 'spec' the color well enough to produce a touch up without the part.

Read more about using Pantone for touch-up.

Learn more about our paint color matching service.

How do I buy paint in the Pantone PMS 645 U?
Many types of paint are available for Pantone PMS 645 U 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. Select the Paint Type button above to get started. Learn more about buying paint at MyPerfectColor.
How much area will one spray can cover? And what is Pantone PMS 645 U spray paint made of?

To make spray paint matched to Pantone PMS 645 U. MyPerfectColor uses an acrylic enamel which is a fast-drying durable coating suitable for interior or exterior use. MyPerfectColor custom spray paint 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 11oz spray will cover about 20 square feet per coat. Keep in mind that it is difficult to gauge how much spray you'll need as it is highly dependent on how it is applied. It is better to have too much than run short.

How do I get the SDS (Safety Data Sheet) for paint matched to Pantone PMS 645 U?
The Pantone PMS 645 U is the color and the SDS is based on the type of paint used to make the color. You can find Safety Data Sheets here for our most popular products.
Do I need a primer for Pantone PMS 645 U?
The need for primer for Pantone PMS 645 U 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 PMS 645 U to a different color from another paint company?

While MyPerfectColor can provide PMS 645 U 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 company's color collection, especially for a color collection like Pantone which is designed for bright colors and inks.