The test focuses on blue-green hues between 150 and 210 ... specialized calibrated equipment to color perception,' he said. 'Graphic designers use physical color cards, such as those made ...

While he perceived it as green, his wife saw it as blue. This disagreement led to the creation of his new website ismy.blue, ...

Toxic blue-green algae has been found in waterways at more than 60 locations across Northern Ireland since May. A map pinpointing the locations has been published which shows the algae has been on ...