Hyundai Coast Blue Pearl (WU6/WU) Touch Up Paint

The Look

This color is a ghost in the Hyundai catalog. Appearing only for the 2015 model year, it was designed to give the Genesis and Genesis Coupe a more sophisticated, European character as the brand prepared to spin Genesis off into its own luxury division. It is a deep, moody blue that carries a serious weight to it. In the shade or under streetlights, your car can easily be mistaken for black, but once you pull it into the sun, the pearl particles wake up and shift the finish into a rich, oceanic navy. Because your car was part of this specific era, the paint has likely aged with a deep luster, but it remains a rare sight on the road compared to the more common greys and silvers.

Technical Details

You are dealing with a complex pearl finish rather than a simple solid color. This means the paint contains tiny mica flakes that reflect light at different angles to create that signature depth. The challenge with pearls is that these flakes are heavier than the blue pigment and love to settle at the bottom of the container. If you don't get them fully suspended, the repair will look like a flat, dull blue that won't match the rest of your door or hood. Pearl finishes are also sensitive to thickness; if you apply the paint too heavily in one spot, the flakes won't lay flat, leading to a "mottled" or blotchy look that ruins the metallic illusion.

Best Practices

Before you apply Hyundai Coast Blue Pearl (check for code WU6/WU), you need to shake the container for at least a full minute to ensure those pearl flakes are evenly distributed. You can find your specific code on the black vehicle information sticker located on the driver's side door jamb. Always test the color on the included card first to see how the light hits the pearl before you touch the car. Whether you are using a nozzle or a pen, keep the container moving to ensure the color lays down in thin, even layers. This prevents the paint from pooling and allows the pearl effect to build up correctly. Give the area plenty of drying time between coats in a cool garage or under some shade, and avoid the temptation to rush the process.