Indigo

Indigo (#5D76CB) in the Crayola set is a medium, bright blue-purple, considerably lighter and more vibrant than the CSS indigo. It captures the expressive, creative energy associated with indigo in art education—a lively blue-purple that children instinctively reach for when coloring deep skies and mystical settings. It suits creative and artistic brand applications.

True blue is the world's most popular favorite color, representing trust, competence, and stability. It suppresses appetite and promotes productivity, making it ideal for work environments. Blue is the dominant color in corporate branding because it communicates reliability without emotional excess.

Medium blue is the default choice for primary buttons, navigation bars, and link text across the web. It forms the foundation of design systems for banking, insurance, and enterprise SaaS products. While universally safe, it benefits from a distinctive hue angle or saturation to avoid blending into the sea of blue brands.