#2e5d9d - Neptune Blue color

This shade reads as a mid-to-deep cool blue with subtle indigo and slate undertones, suggesting a restrained, professional presence rather than a bright primary azure. It evokes the deep ocean under clear daylight—calm, steady, and slightly formal. Its moderate saturation makes it versatile for corporate identities, user interfaces, and nautical or academic themes, pairing beautifully with warm neutrals, soft creams, and metallic golds. It provides excellent contrast with white or pale type while retaining an elegant, trustworthy mood.