Colorful discussion surrounding powder blue making its glorious

The Rarest Blue: The Remarkable Story of an Ancient Color Lost to History and Rediscovered [Book]

Creating multi-coloured cyanotype prints - Out of the Blue – the world appears in colour

To dye for: the flower that makes food a beautiful hue of peacock blue, Food

The Colorful Worlds of Pipilotti Rist

Object of the Day - Saint Louis Art Museum

Natural and Synthetic Flavylium-Based Dyes: The Chemistry Behind the Color

French Ultramarine vs Ultramarine Blue - Liz Steel : Liz Steel