Slate Blue

Slate Blue is the muted, slightly purple-leaning blue-gray of stratified rock. The CSS hex sits at mid-low lightness with moderate chroma in the indigo zone. Editorial, financial, and architectural brands use it as a primary identity colour - often against cream for warmth or with warm gold for a heritage accent. Against white it passes body text contrast in most sizes and works as a sophisticated alternative to standard navy. Body text in Slate Blue against white passes AA at body sizes; AAA holds at headline sizes.