Blue was the first ever man-made pigment. Egyptian blue was the absolute earliest version, created by mixing and heating quartz sand, copper, an alkali, and lime. Since then, of course, we’ve had Cerulean blue, Prussian blue, and Cobalt blue.
Now the first blue pigment created in over 200 years is set to appear in colouring boxes later this year. Currently known as YInMn blue (though Crayola is crowdsourcing name ideas), it results from a chemistry experiment by grad student Andrew Smith at Oregon State University (OSU) who made the discovery while working on new materials for use in electronics. Want to know more about colour in art? Check out Chromaphilia at Phaidon.com