This is the final stop on Spectrum Stories.

Purple sits at the edge of the rainbow — but unlike every other colour we’ve explored, it doesn’t exist as a single wavelength of light. Instead, purple is something the brain invents, a bridge between red and blue that lives in perception rather than physics.

In this episode, we follow purple across science, history, art, and culture. From sea snails and imperial law to Victorian chemistry accidents, spiritual symbolism, pop culture icons, and colour theory, purple reveals how colour is shaped as much by human imagination as by light itself.

Blue is everywhere — the sky, the sea, your jeans, and even your favourite tech gadgets. In this episode of Spectrum Stories, we dive deep into the world of blue: from the physics that make the sky glow, to the rare pigments of lapis lazuli and cobalt, from Delftware and denim to the Smurfs, TARDIS, and iconic blue LEDs.

Step into the world of green with Spectrum Stories: Adventures in Colourland! Genevieve explores green in all its glory—from the science of chlorophyll and its calming effect on the mind, to its role in history, folklore, and pop culture. Discover why Shakespeare’s “green-eyed monster” still haunts us, how green shaped cinema and branding, and why it colours everything from beer and wine bottles to ethical movements. A journey through nature, culture, and imagination, green proves it’s never just a colour—it’s a story.