Colour: A particular shade of red. To be precise, the range of colours around CIE chromacity x 0.41, y 0.27 to 0.33; depending on your hardware, they look something like:
... a whole. In the great division of the Hegelian school, he, in company with Michelet and others, formed the "centre," midway between Erdmann and Gabler on the one hand, and ...