An array of colours dwarf visitors to the Rainbow Mountains in the Andes Cordillera in Peru in January 2023, which owes its colours to the minerals contained in the soil. The sulfur offers the yellow colour, iron oxide gives the red and copper sulfate is green. In total, it is made up of 14 different minerals. It was probably caused by weather and volcanic activity. (Photo by Guillaume Astruc/Naturagency/Solent News & Photo Agenc)

Winner. “I took this picture of a woman in traditional clothing in Cartagena, Colombia”. PAUL GOLDSTEIN, JUDGE: “The blaze of colour from every angle, the boldness of the picture, taken from behind, which gives it so much more allure and frankly a superb get up. Did I mention the colours? Oh, and that looks suspiciously like a Nokia”. (Photo by Stanislav Shmelev/The Guardian)

Students of Rabindrabharati University apply colour dust or Gulal on each other during a celebration the festival of colour Holi in Kolkata, Eastern India, 23 March 2024. Holi, also known as the Festival of Colors, is an ancient Hindu festival symbolizing the victory of good over evil and marking the arrival of spring. It is observed with joyful gatherings during which revelers cover each other in colored powders. (Photo by Piyal Adhikary/EPA/EFE)

Stunning images taken by Sean Lenz, 19, and Kristoffer Abligaard, 20, show picturesque waterfalls transformed into vibrant rainbows of colour. The awe-inspiring images were created by clever use of long exposure photography and glow sticks floating through water. Photo: Picturesque waterfalls transformed into rainbows of colour. (Photo by Sean Lenz/Kristoffer Abildgaard)

Members of the Prizma Ensemble wearing full solid-coloured bodysuits take part in a festival for the Jewish holiday of Hanukkah, in Jerusalem December 26, 2016. (Photo by Amir Cohen/Reuters)

A reindeer is seen as people visit ice sculptures illuminated by coloured lights at the Harbin Ice and Snow Festival to celebrate the new year in Harbin on January 4, 2017. (Photo by Nicolas Asfouri/AFP Photo)

Hindu devotees take part in the religious festival of Holi, also known as the festival of colours, in the town of Barsana in the Uttar Pradesh region of India, March 16, 2016. (Photo by Cathal McNaughton/Reuters)

Two male African mantis Pseudempusa pinnapavonis (Peacock Mantis) show their colours in Igor's home studio in Munich, Germany. (Photo by Igor Siwanowicz/Barcroft Media)