#133A49 Hex Color

#133a49 functions exceptionally well as a primary dark-mode background because it offers a 12.1:1 contrast ratio against standard white text. It provides necessary depth while appearing less harsh and more professional than a pure black background.

This deep, dusty cyan creates a balanced, sophisticated palette when paired with soft corals or muted golds. The warmth of these secondary tones provides a necessary contrast against the cool, serious foundation of #133a49.