11.   Colours other than pure red, green and blue are formed by the combination of the three primary colours.

12.   After the greying of the Irish, Hastings painted the Welsh match in primary colours.

13.   Not just the primary colours.

14.   Primary colours such as red, blue and yellow have been universally used for these purposes.

15.   The primary colours in the new collection are yellow, blue, orange, green, cream, and brown.

16.   White T-shirt dresses bore sketches of the Eiffel Tower and Sacre-Coeur church, with big red hearts and splashes of other primary colours.