Colours

Daniel Buren's light show at the Baltic Arts centre in Gateshead...A light show by French artist Daniel Buren called Catch, which is on display at the Baltic Arts centre in Gateshead, the light is all natural sunlight which hits 10 mirrors with different coloured vinyl on a skylight. PRESS ASSOCIATION Photo. Picture date: Wednesday August 6, 2014. Photo credit should read: Owen Humphreys/PA Wire

Owen Humphreys/PA

Students apply coloured power onto their teacher's head during Holi celebrations at a school in the western Indian city of Ahmedabad March 14, 2014. Holi, also known as the Festival of Colours, heralds the beginning of spring and is celebrated all over India.

Amit Dave/Reuters

Students apply coloured powder onto their teacher’s head during Holi celebrations at a school in the western Indian city of Ahmedabad. Holi, also known as the Festival of Colours, heralds the beginning of spring and is celebrated all over India

A woman views autumn colours of a climbing plant across a wall in central London...A woman views autumn colours of a climbing plant across a wall in central London November 13, 2013. REUTERS/Toby Melville

Toby Melville/Reuters

A woman walks past the autumn colours of a climbing plant in London.