RAL 5004 Black Blue

RAL 5004 Black Blue (#18171C) is the darkest RAL blue — a near-black with just discernible blue character, essentially a blue-black. This profound depth is used as a premium alternative to pure black in automotive finishes, luxury architectural cladding, and high-end consumer electronics where warmth from a blue-black is preferred over stark black.

Dark blues like navy and midnight convey authority, intelligence, and unshakeable confidence. They are the color of police uniforms, corporate suits, and official documents worldwide. Navy blue inspires feelings of security and order, anchoring visual hierarchies with gravitas.

Dark blue is the premier choice for header backgrounds, navigation bars, and footer sections in corporate websites. It provides excellent contrast for white text and creates a sense of depth and professionalism. Pair it with bright accent colors like orange or lime for vibrant CTAs that pop against the authoritative background.