All colour articles – Page 2

  • Piles of colored powders in an Indian market – holi colors
    Podcast

    Dibromoindigo

    2014-04-02T00:00:00Z

    Purple was once a colour only royalty could afford to wear. Hayley Birch investigates tyrian purple, or dibromoindigo, the original purple dye

  • Cadmium sulfide
    Podcast

    Cadmium sulfide

    2013-03-13T00:00:00Z

    Brian Clegg brightens up our lives with some bright yellow chemistry

  • Scoop of ultramarine blue color pigments
    Podcast

    Prussian blue

    2013-01-30T00:00:00Z

    Laura Howes looks back to a time when feeling blue was a good thing - and wearing it was ‘bling’