#678BC9 Hex Color

Use #678bc9 for primary actions or headers in professional applications like finance or government portals. Because it offers a 6.1:1 contrast ratio against black, it remains accessible for small text while avoiding the cold sterility of pure blue.

Pair Royal Regatta with warm, earthy greys to ground its muted, dusty tone. Adding hints of charcoal or warm beige prevents the blue from feeling sterile, creating a sophisticated and balanced UI experience for professional branding.