About That Yellow Though There is so much going on in the CPU cooler world. Many companies are doing everything they can to stand out, which leads to questionable decisions. In the case of the Reeven Ouranos, the yellow fan definitely adds a unique element to the design. On the other hand, is yellow going to do enough to attract buyers? We’ll see if this cooler has a solid place in the PC building world, but first a statement from the company.