#40464d - Alpine Duck Grey color

A deep, muted slate that reads as a cool charcoal with subtle blue-green undertones. It feels restrained and sophisticated, evoking steel, slate, and storm cloud shadows. As a background it gives interfaces a grounded, modern neutrality; paired with warm accents like brass or wood it softens and gains richness, while with crisp whites or pale pastels it becomes elegantly minimalist. Its low saturation and moderate darkness lend calm authority, making it suitable for professional, industrial, or contemplative design palettes.