COLOR CODEAC-644 - Regate Blue MetallicCitroen Touch-Up Paint

The Look

This color is a time capsule from 1979. It is a medium, technical blue that perfectly captures the "spaceship" aesthetic of the CX and the GSA. While it feels industrial and precise, it has a distinct French softness that keeps it from looking like a modern fleet color. Since your Citroen has been on the road for over four decades, the original finish has likely shifted toward a flatter, grayer tone. Your new application will likely look deeper and more vibrant than the aged panels surrounding it.

Technical Details

This is a metallic finish. It relies on thousands of tiny aluminum flakes to catch the light and create depth. The biggest risk with a metallic like this is mottling, where the flakes clump together and create dark, blotchy streaks. If the paint is applied too heavily in one spot, the finish loses its uniform shimmer and looks uneven. You want the flakes to lay flat and spread out, which requires patience and thin layers rather than one heavy coat.

Best Practices

On a 1979 model, you will usually find the paint code stenciled in a contrasting color on the firewall or bulkhead inside the engine bay. It might also be stamped onto a small plate near the suspension towers. Before you spray or dab Citroen Regate Blue Metallic (check for code AC-644), you need to shake the container for a full 60 seconds to wake up the metallic flakes. Test the color on the included card to see how the new pigment reacts to the light. Whether you are using a brush or a nozzle, keep the container moving to ensure the flakes stay suspended and land evenly on the surface.