Black is more neutral looking but hey, if you drag along two pairs in three lenghts colour codes are great: bought blue for the 1.5M, purple 3M and green 5M: never confused again. In 5 years time I will say something about the quality but looks very good. The non plastic packaging is environmentally great and the copy on it is very informative and nice, even a quote from Sun Ra, what a sympathetic brand!